Hash Calculator – Lloyds BITS

Relictum Pro unique hashing mechanism

Relictum Pro unique hashing mechanism
Hash and hashing algorithms are key concepts that newcomers to the blockchain know about and which always go hand in hand with security.
To maintain decentralized networks and consensus mechanisms, including Bitcoin or Ethereum with a thousand nodes connected via p2p, a “lack of trust” and an effective confirmation system are necessary. These networks need compact methods of encrypting information that would allow participants to conduct quick and secure checks.
Block is one of the main components of Bitcoin and Ethereum. The block contains information about transactions, timestamps, and other significant metadata. A considerable role in ensuring security is played by the ability to compress large amounts of information about the global network status into short standard messages, which can be easily checked if necessary. These messages are the hash.
Hash algorithms in cryptography are used everywhere. The main areas of their application are the storage of passwords, file verification systems, etc. The essence of these hashes is to use a deterministic algorithm that takes input and creates a string with a fixed length. Thus, the same input will always be converted to the same output.
Determinism is important not only for hashes because even if you change one bit of the input data, you also get a completely different hash.
However, there is a problem with hashing algorithms - this is the inevitability of collisions. Collisions are bad. This means that the attacker who created the collisions can transfer malicious files while hiding under the correct hash. A good hash function should make it more difficult for attackers to find ways to create an input with the same hash value.
The process of calculating the hash should not be too effective since in this case, attackers can easily calculate collisions. Hash algorithms must be resistant to the attacks of finding the pre-image. It is necessary to complicate the process of calculating steps to find the initial value from which the hash was created (for example, the inverse image).
Relictum Pro is a supplemented modification of SHA1-based hashing mathematics. The main advantage of it is in converting from 20 bytes to 32 bytes (in your own hash). This gives a high crypto-stability, including from a promising quantum computer.
submitted by RelictumPro_official to relictumpro [link] [comments]

Features of Relictum Pro

- Own added modification of SHA1-based hashing algorithm
- No problems of consensus, there are no problems and issues related to the solution of various ambiguities such as collisions, double waste, etc.
- А block hash collision may occur in 100 years due to the continuous numbering of each block in Master Chain
- Size weight of the node ranging from 120 to 300 bytes according to calculations, in 20 years the registry weight can reach 1 GB if you work with the bitcoin mode intensity.
- Full featured real nodes in smartphones. That is in favor of full decentralization a full distributed registry independent of third-party servers and services.
- The ability to store global data in a decentralized distributed repository the choice of each participant to provide hard disk space and receive a commission.
- Full wrenched smart contract of bookkeeping and coordinations, for instance, from planting an espresso shrubbery, moving, selling espresso to representing a mug of espresso devoured by the end client.
#relictumpro #relictcoin #relictum #DLT relictumpro https://relictum.pro/
submitted by soultira to CryptocurrencyICO [link] [comments]

World History Timeline of Events Leading up to Bitcoin - In the Making

A (live/editable) timeline of historical events directly or indirectly related to the creation of Bitcoin and Cryptocurrencies
*still workin' on this so check back later and more will be added, if you have any suggested dates/events feel free to lemme know...
This timeline includes dates pertaining to:
Ancient Bartering – first recorded in Egypt (resources, services...) – doesn’t scale
Tally sticks were used, making notches in bones or wood, as a form of money of account
9000-6000 BC Livestock considered the first form of currency
c3200 BC Clay tablets used in Uruk (Iraq) for accounting (believed to be the earliest form of writing)
3000 BC Grain is used as a currency, measured out in Shekels
3000 BC Banking developed in Mesopotamia
3000 BC? Punches used to stamp symbols on coins were a precursor to the printing press and modern coins
? BC Since ancient Persia and all the way up until the invention and expansion of the telegraph Homing Pigeons were used to carry messages
2000 BC Merchants in Assyria, India and Sumeria lent grain to farmers and traders as a precursor to banks
1700 BC In Babylon at the time of Hammurabi, in the 18th century BC, there are records of loans made by the priests of the temple.
1200 BC Shell money first used in China
1000-600 BC Crude metal coins first appear in China
640 BC Precious metal coins – Gold & Silver first used in ancient Lydia and coastal Greek cities featuring face to face heads of a bull and a lion – first official minted currency made from electrum, a mixture of gold and silver
600-500 BC Atbash Cipher
A substitution Cipher used by ancient Hebrew scholars mapping the alphabet in reverse, for example, in English an A would be a Z, B a Y etc.
400 BC Skytale used by Sparta
474 BC Hundreds of gold coins from this era were discovered in Rome in 2018
350 BC Greek hydraulic semaphore system, an optical communication system developed by Aeneas Tacticus.
c200 BC Polybius Square
??? Wealthy stored coins in temples, where priests also lent them out
??? Rome was the first to create banking institutions apart from temples
118 BC First banknote in the form of 1 foot sq pieces of white deerskin
100-1 AD Caesar Cipher
193 Aureus, a gold coin of ancient Rome, minted by Septimius Severus
324 Solidus, pure gold coin, minted under Constantine’s rule, lasted until the late 8th century
600s Paper currency first developed in Tang Dynasty China during the 7th century, although true paper money did not appear until the 11th century, during the Song Dynasty, 960–1279
c757–796 Silver pennies based on the Roman denarius became the staple coin of Mercia in Great Britain around the time of King Offa
806 First paper banknotes used in China but isn’t widely accepted in China until 960
1024 The first series of standard government notes were issued in 1024 with denominations like 1 guàn (貫, or 700 wén), 1 mín (緡, or 1000 wén), up to 10 guàn. In 1039 only banknotes of 5 guàn and 10 guàn were issued, and in 1068 a denomination of 1 guàn was introduced which became forty percent of all circulating Jiaozi banknotes.
1040 The first movable type printer was invented in China and made of porcelain
? Some of the earliest forms of long distance communication were drums used by Native Africans and smoke signals used by Native Americans and Chinese
1088 Movable type in Song Dynasty China
1120 By the 1120s the central government officially stepped in and produced their own state-issued paper money (using woodblock printing)
1150 The Knights Templar issued bank notes to pilgrims. Pilgrims deposited their valuables with a local Templar preceptory before embarking, received a document indicating the value of their deposit, then used that document upon arrival in the Holy Land to retrieve their funds in an amount of treasure of equal value.
1200s-1300s During the 13th century bankers from north Italy, collectively known as Lombards, gradually replace the Jews in their traditional role as money-lenders to the rich and powerful. – Florence, Venice and Genoa - The Bardi and Peruzzi Families dominated banking in 14th century Florence, establishing branches in many other parts of Europe
1200 By the time Marco Polo visited China they’d move from coins to paper money, who introduced the concept to Europe. An inscription warned, "All counterfeiters will be decapitated." Before the use of paper, the Chinese used coins that were circular, with a rectangular hole in the middle. Several coins could be strung together on a rope. Merchants in China, if they became rich enough, found that their strings of coins were too heavy to carry around easily. To solve this problem, coins were often left with a trustworthy person, and the merchant was given a slip of paper recording how much money they had with that person. Marco Polo's account of paper money during the Yuan Dynasty is the subject of a chapter of his book, The Travels of Marco Polo, titled "How the Great Kaan Causeth the Bark of Trees, Made Into Something Like Paper, to Pass for Money All Over his Country."
1252 Florin minted in Florence, becomes the hard currency of its day helping Florence thrive economically
1340 Double-entry bookkeeping - The clerk keeping the accounts for the Genoese firm of Massari painstakingly fills in the ledger for the year 1340.
1397 Medici Bank established
1450 Johannes Gutenberg builds the printing press – printed words no longer just for the rich
1455 Paper money disappears from China
1466 Polyalphabetic Cipher
1466 Rotating cipher disks – Vatican – greatest crypto invention in 1000 yrs – the first system to challenge frequency analysis
1466 First known mechanical cipher machine
1472 The oldest bank still in existence founded, Banca Monte dei Paschi di Siena, headquartered in Siena, Italy
1494 Double-entry bookkeeping system codified by Luca Pacioli
1535 Wampum, a form of currency used by Native Americans, a string of beads made from clamshells, is first document.
1553 Vigenere Cipher
1557 Phillip II of Spain managed to burden his kingdom with so much debt (as the result of several pointless wars) that he caused the world's first national bankruptcy — as well as the world's second, third and fourth, in rapid succession.
1577 Newspaper in Korea
1586 The Babington Plot
1590 Cabinet Noir was established in France. Its mission was to open, read and reseal letters, and great expertise was developed in the restoration of broken seals. In the knowledge that mail was being opened, correspondents began to develop systems to encrypt and decrypt their letters. The breaking of these codes gave birth to modern systematic scientific code breaking.
1600s Promissory banknotes began in London
1600s By the early 17th century banking begins also to exist in its modern sense - as a commercial service for customers rather than kings. – Late 17th century we see cheques slowly gains acceptance
The total of the money left on deposit by a bank's customers is a large sum, only a fraction of which is usually required for withdrawals. A proportion of the rest can be lent out at interest, bringing profit to the bank. When the customers later come to realize this hidden value of their unused funds, the bank's profit becomes the difference between the rates of interest paid to depositors and demanded from debtors.
The transformation from moneylenders into private banks is a gradual one during the 17th and 18th centuries. In England it is achieved by various families of goldsmiths who early in the period accept money on deposit purely for safe-keeping. Then they begin to lend some of it out. Finally, by the 18th century, they make banking their business in place of their original craft as goldsmiths.
1605 Newspaper in Straussburg
c1627 Great Cipher
1637 Wampum is declared as legal tender in the U.S. (where we got the slang word “clams” for money)
1656 Johan Palmstruch establishes the Stockholm Banco
1661 Paper Currency reappears in Europe, soon became common - The goldsmith-bankers of London began to give out the receipts as payable to the bearer of the document rather than the original depositor
1661 Palmstruch issues credit notes which can be exchanged, on presentation to his bank, for a stated number of silver coins
1666 Stockholms Banco, the predecessor to the Central Bank of Sweden issues the first paper money in Europe. Soon went bankrupt for printing too much money.
1667 He issues more notes than his bank can afford to redeem with silver and winds up in disgrace, facing a death penalty (commuted to imprisonment) for fraud.
1668 Bank of Sweden – today the 2nd oldest surviving bank
1694 First Central Bank established in the UK was the first bank to initiate the permanent issue of banknotes
Served as model for most modern central banks.
The modern banknote rests on the assumption that money is determined by a social and legal consensus. A gold coin's value is simply a reflection of the supply and demand mechanism of a society exchanging goods in a free market, as opposed to stemming from any intrinsic property of the metal. By the late 17th century, this new conceptual outlook helped to stimulate the issue of banknotes.
1700s Throughout the commercially energetic 18th century there are frequent further experiments with bank notes - deriving from a recognized need to expand the currency supply beyond the availability of precious metals.
1710 Physiocracy
1712 First commercial steam engine
1717 Master of the Royal Mint Sir Isaac Newton established a new mint ratio between silver and gold that had the effect of driving silver out of circulation (bimetalism) and putting Britain on a gold standard.
1735 Classical Economics – markets regulate themselves when free of intervention
1744 Mayer Amschel Rothschild, Founder of the Rothschild Banking Empire, is Born in Frankfurt, Germany
Mayer Amschel Rothschild extended his banking empire across Europe by carefully placing his five sons in key positions. They set up banks in Frankfurt, Vienna, London, Naples, and Paris. By the mid 1800’s they dominated the banking industry, lending to governments around the world and people such as the Vanderbilts, Carnegies, and Cecil Rhodes.
1745 There was a gradual move toward the issuance of fixed denomination notes in England standardized printed notes ranging from £20 to £1,000 were being printed.
1748 First recorded use of the word buck for a dollar, stemming from the Colonial period in America when buck skins were commonly traded
1757 Colonial Scrip Issued in US
1760s Mayer Amschel Rothschild establishes his banking business
1769 First steam powered car
1775-1938 US Diplomatic Codes & Ciphers by Ralph E Weber used – problems were security and distribution
1776 American Independence
1776 Adam Smith’s Invisible Hand theory helped bankers and money-lenders limit government interference in the banking sector
1781 The Bank of North America was a private bank first adopted created the US Nation's first de facto central bank. When shares in the bank were sold to the public, the Bank of North America became the country's first initial public offering. It lasted less than ten years.
1783 First steamboat
1791 Congress Creates the First US Bank – A Private Company, Partly Owned by Foreigners – to Handle the Financial Needs of the New Central Government. First Bank of the United States, a National bank, chartered for a term of twenty years, it was not renewed in 1811.
Previously, the 13 states had their own banks, currencies and financial institutions, which had an average lifespan of about 5 years.
1792 First optical telegraph invented where towers with telescopes were dispersed across France 12-25 km apart, relaying signals according to positions of arms extended from the top of the towers.
1795 Thomas Jefferson invents the Jefferson Disk Cipher or Wheel Cipher
1797 to 1821 Restriction Period by England of trading banknotes for silver during Napoleonic Wars
1797 Currency Crisis
Although the Bank was originally a private institution, by the end of the 18th century it was increasingly being regarded as a public authority with civic responsibility toward the upkeep of a healthy financial system.
1799 First paper machine
1800 Banque de France – France’s central bank opens to try to improve financing of the war
1800 Invention of the battery
1801 Rotchschild Dynasty begins in Frankfurt, Holy Roman Empire – established international banking family through his 5 sons who established themselves in London, Paris, Frankfurt, Vienna, and Naples
1804 Steam locomotive
1807 Internal combustion engine and automobile
1807 Robert Fulton expands water transportation and trade with the workable steamboat.
1809 Telegraphy
1811 First powered printing press, also first to use a cylinder
1816 The Privately Owned Second Bank of the US was Chartered – It Served as the Main Depository for Government Revenue, Making it a Highly Profitable Bank – charter not renewed in 1836
1816 The first working telegraph was built using static electricity
1816 Gold becomes the official standard of value in England
1820 Industrial Revolution
c1820 Neoclassical Economics
1821 British gov introduces the gold standard - With governments issuing the bank notes, the inherent danger is no longer bankruptcy but inflation.
1822 Charles Babbage, considered the "father of the computer", begins building the first programmable mechanical computer.
1832 Andrew Jackson Campaigns Against the 2nd Bank of the US and Vetoes Bank Charter Renewal
Andrew Jackson was skeptical of the central banking system and believed it gave too few men too much power and caused inflation. He was also a proponent of gold and silver and an outspoken opponent of the 2nd National Bank. The Charter expired in 1836.
1833 President Jackson Issues Executive Order to Stop Depositing Government Funds Into Bank of US
By September 1833, government funds were being deposited into state chartered banks.
1833-1837 Manufactured “boom” created by central bankers – money supply Increases 84%, Spurred by the 2nd Bank of the US
The total money supply rose from $150 million to $267 million
1835 Jackson Escapes Assassination. Assassin misfired twice.
1837-1862 The “Free Banking Era” there was no formal central bank in the US, and banks issued their own notes again
1838 First Telegram sent using Morse Code across 3 km, in 1844 he sent a message across 71 km from Washington DC to Baltimore.
1843 Ada Lovelace published the first algorithm for computing
1844 Modern central bank of England established - meaning only the central bank of England could issue banknotes – prior to that commercial banks could issue their own and were the primary form of currency throughout England
the Bank of England was restricted to issue new banknotes only if they were 100% backed by gold or up to £14 million in government debt.
1848 Communist Manifesto
1850 The first undersea telegraphic communications cable connected France in England after latex produced from the sap of the Palaquium gutta tree in 1845 was proposed as insulation for the underwater cables.
1852 Many countries in Europe build telegram networks, however post remained the primary means of communication to distant countries.
1855 In England fully printed notes that did not require the name of the payee and the cashier's signature first appeared
1855 The printing telegraph made it possible for a machine with 26 alphabetic keys to print the messages automatically and was soon adopted worldwide.
1856 Belgian engineer Charles Bourseul proposed telephony
1856 The Atlantic Telegraph company was formed in London to stretch a commercial telegraph cable across the Atlantic Ocean, completed in 1866.
1860 The Pony Express was founded, able to deliver mail of wealthy individuals or government officials from coast to coast in 10 days.
1861 The East coast was connected to the West when Western Union completed the transcontinental telegraph line, putting an end to unprofitable The Pony Express.
1862-1863 First US banknotes - Lincoln Over Rules Debt-Based Money and Issues Greenbacks to Fund Civil War
Bankers would only lend the government money under certain conditions and at high interest rates, so Lincoln issued his own currency – “greenbacks” – through the US Treasury, and made them legal tender. His soldiers went on to win the war, followed by great economic expansion.
1863 to 1932 “National Banking Era” Commercial banks in the United States had legally issued banknotes before there was a national currency; however, these became subject to government authorization from 1863 to 1932
1864 Friedrich Wilhelm Raiffeisen founded the first rural credit union in Heddesdorf (now part of Neuwied) in Germany. By the time of Raiffeisen's death in 1888, credit unions had spread to Italy, France, the Netherlands, England, Austria, and other nations
1870 Long-distance telegraph lines connected Britain and India.
c1871 Marginalism - The doctrines of marginalism and the Marginal Revolution are often interpreted as a response to the rise of the worker's movement, Marxian economics and the earlier (Ricardian) socialist theories of the exploitation of labour.
1871 Carl Menger’s Principles of Economics – Austrian School
1872 Marx’s Das Capital
1872 Australia becomes the first nation to be connected to the rest of the world via submarine telegraph cables.
1876 Alexander Graham Bell patented the telephone, first called the electric speech machine – revolutionized communication
1877 Thomas Edison – Phonograph
1878 Western Union, the leading telegraph provider of the U.S., begins to lose out to the telephone technology of the National Bell Telephone Company.
1881 President James Garfield, Staunch Proponent of “Honest Money” Backed by Gold and Silver, was Assassinated
Garfield opposed fiat currency (money that was not backed by any physical object). He had the second shortest Presidency in history.
1882 First description of the one-time pad
1886 First gas powered car
1888 Ballpoint pen
1892 Cinematograph
1895 System of wireless communication using radio waves
1896 First successful intercontinental telegram
1898 Polyethylene
1899 Nickel-cadmium battery
1907 Banking Panic of 1907
The New York Stock Exchange dropped dramatically as everyone tried to get their money out of the banks at the same time across the nation. This banking panic spurred debate for banking reform. JP Morgan and others gathered to create an image of concern and stability in the face of the panic, which eventually led to the formation of the Federal Reserve. The founders of the Federal Reserve pretended like the bankers were opposed to the idea of its formation in order to mislead the public into believing that the Federal Reserve would help to regulate bankers when in fact it really gave even more power to private bankers, but in a less transparent way.
1908 St Mary’s Bank – first credit union in US
1908 JP Morgan Associate and Rockefeller Relative Nelson Aldrich Heads New National Monetary Commission
Senate Republican leader, Nelson Aldrich, heads the new National Monetary Commission that was created to study the cause of the banking panic. Aldrich had close ties with J.P. Morgan and his daughter married John D. Rockefeller.
1910 Bankers Meet Secretly on Jekyll Island to Draft Federal Reserve Banking Legislation
Over the course of a week, some of the nation’s most powerful bankers met secretly off the coast of Georgia, drafting a proposal for a private Central Banking system.
1913 Federal Reserve Act Passed
Two days before Christmas, while many members of Congress were away on vacation, the Federal Reserve Act was passed, creating the Central banking system we have today, originally with gold backed Federal Reserve Notes. It was based on the Aldrich plan drafted on Jekyll Island and gave private bankers supreme authority over the economy. They are now able to create money out of nothing (and loan it out at interest), make decisions without government approval, and control the amount of money in circulation.
1913 Income tax established -16th Amendment Ratified
Taxes ensured that citizens would cover the payment of debt due to the Central Bank, the Federal Reserve, which was also created in 1913.The 16th Amendment stated: “The Congress shall have power to lay and collect taxes on incomes, from whatever source derived, without apportionment among the several States, and without regard to any census or enumeration.”
1914 November, Federal Reserve Banks Open
JP Morgan and Co. Profits from Financing both sides of War and Purchasing Weapons
J.P. Morgan and Co. made a deal with the Bank of England to give them a monopoly on underwriting war bonds for the UK and France. They also invested in the suppliers of war equipment to Britain and France.
1914 WWI
1917 Teletype cipher
1917 The one-time pad
1917 Zimmerman Telegram intercepted and decoded by Room 40, the cryptanalysis department of the British Military during WWI.
1918 GB returns to gold standard post-war but it didn’t work out
1919 First rotor machine, an electro-mechanical stream ciphering and decrypting machine.
1919 Founding of The Cipher Bureau, Poland’s intelligence and cryptography agency.
1919-1929 The Black Chamber, a forerunner of the NSA, was the first U.S. cryptanalytic organization. Worked with the telegraph company Western Union to illegally acquire foreign communications of foreign embassies and representatives. It was shut down in 1929 as funding was removed after it was deemed unethical to intercept private domestic radio signals.
1920s Department stores, hotel chains and service staions begin offering customers charge cards
1921-1929 The “Roaring 20’s” – The Federal Reserve Floods the Economy with Cash and Credit
From 1921 to 1929 the Federal Reserve increased the money supply by $28 billion, almost a 62% increase over an eight-year period.[3] This artificially created another “boom”.
1927 Quartz clock
1928 First experimental Television broadcast in the US.
1929 Federal Reserve Contracts the Money Supply
In 1929, the Federal Reserve began to pull money out of circulation as loans were paid back. They created a “bust” which was inevitable after issuing so much credit in the years before. The Federal Reserve’s actions triggered the banking crisis, which led to the Great Depression.
1929 October 24, “Black Thursday”, Stock Market Crash
The most devastating stock market crash in history. Billions of dollars in value were consolidated into the private banker’s hands at the expense of everyone else.
1930s The Great Depression marked the end of the gold standard
1931 German Enigma machines attained and reconstructed.
1932 Turbo jet engine patented
1933 SEC founded - passed the Glass–Steagall Act, which separated investment banking and commercial banking. This was to avoid more risky investment banking activities from ever again causing commercial bank failures.
1933 FM Radio
1933 Germany begins Telex, a network of teleprinters sending and receiving text based messages. Post WWII Telex networks began to spread around the world.
1936 Austrian engineer Paul Eisler invented Printed circuit board
1936 Beginning of the Keynesian Revolution
1937 Typex, British encryption machines which were upgraded versions of Enigma machines.
1906 Teletypewriters
1927 Founding of highly secret and unofficial Signal Intelligence Service, SIS, the U.S. Army’s codebreaking division.
1937 Made illegal for Americans to own gold
1938 Z1 built by Konrad Zuse is the first freely programmable computer in the world.
1939 WWII – decline of the gold standard which greatly restricted policy making
1939-45 Codetalkers - The Navajo code is the only spoken military code never to have been deciphered - "Were it not for the Navajos, the Marines would never have taken Iwo Jima."—Howard Connor
1940 Modems
1942 Deciphering Japanese coded messages leads to a turning point victory for the U.S. in WWII.
1943 At Bletchley Park, Alan Turing and team build a specialized cipher-breaking machine called Heath Robinson.
1943 Colossus computer built in London to crack the German Lorenz cipher.
1944 Bretton Woods – convenient after the US had most of the gold
1945 Manhattan Project – Atom Bomb
1945 Transatlantic telephone cable
1945 Claude E. Shannon published "A mathematical theory of cryptography", commonly accepted as the starting point for development of modern cryptography.
C1946 Crypto Wars begin and last to this day
1946 Charg-it card created by John C Biggins
1948 Atomic clock
1948 Claude Shannon writes a paper that establishes the mathematical basis of information theory
1949 Info theorist Claude Shannon asks “What does an ideal cipher look like?” – one time pad – what if the keys are not truly random
1950 First credit card released by the Diners Club, able to be used in 20 restaurants in NYC
1951 NSA, National Security Agency founded and creates the KL-7, an off-line rotor encryption machine
1952 First thermonuclear weapon
1953 First videotape recorder
1953 Term “Hash” first used meaning to “chop” or “make a mess” out of something
1954 Atomic Energy Act (no mention of crypto)
1957 The NSA begins producing ROMOLUS encryption machines, soon to be used by NATO
1957 First PC – IBM
1957 First Satellite – Sputnik 1
1958 Western Union begins building a nationwide Telex network in the U.S.
1960s Machine readable codes were added to the bottom of cheques in MICR format, which speeded up the clearing and sorting process
1960s Financial organizations were beginning to require strong commercial encryption on the rapidly growing field of wired money transfer.
1961 Electronic clock
1963 June 4, Kennedy Issued an Executive Order (11110) that Authorized the US Treasury to Issue Silver Certificates, Threatening the Federal Reserve’s Monopoly on Money
This government issued currency would bypass the governments need to borrow from bankers at interest.
1963 Electronic calculator
1963 Nov. 22, Kennedy Assassinated
1963 Johnson Reverses Kennedy’s Banking Rule and Restores Power to the Federal Reserve
1964 8-Track
1964 LAN, Local Area Networks adapters
1965 Moore’s Law by CEO of Intel Gordon Moore observes that the number of components per integrated circuit doubles every year, and projected this rate of growth would continue for at least another decade. In 1975 he revised it to every two years.
1967 First ATM installed at Barclay’s Bank in London
1968 Cassette Player introduced
1969 First connections of ARPANET, predecessor of the internet, are made. started – SF, SB, UCLA, Utah (now Darpa) – made to stay ahead of the Soviets – there were other networks being built around the world but it was very hard to connect them – CERN in Europe
1970s Stagflation – unemployment + inflation, which Keynesian theory could not explain
1970s Business/commercial applications for Crypto emerge – prior to this time it was militarily used – ATMs 1st got people thinking about commercial applications of cryptography – data being sent over telephone lines
1970s The public developments of the 1970s broke the near monopoly on high quality cryptography held by government organizations.
Use of checks increased in 70s – bringing about ACH
One way functions...
A few companies began selling access to private networks – but weren’t allowed to connect to the internet – business and universities using Arpanet had no commercial traffic – internet was used for research, not for commerce or advertising
1970 Railroads threatened by the growing popularity of air travel. Penn Central Railroad declares bankruptcy resulting in a $3.2 billion bailout
1970 Conjugate coding used in an attempt to design “money physically impossible to counterfeit”
1971 The US officially removes the gold standard
1971 Email invented
1971 Email
1971 First microcomputer on a chip
1971 Lockheed Bailout - $1.4 billion – Lockheed was a major government defense contractor
1972 First programmable word processor
1972 First video game console
1973 SWIFT established
1973 Ethernet invented, standardized in ‘83
1973 Mobile phone
1973 First commercial GUI – Xerox Alto
1973 First touchscreen
1973 Emails made up more than ¾ of ARPANET’s packets – people had to keep a map of the network by their desk – so DNS was created
1974 A protocol for packet network intercommunication – TCP/IP – Cerf and Kahn
1974 Franklin National Bank Bailout - $1.5 billion (valued at that time) - At the time, it was the largest bank failure in US history
1975 New York City Bailout - $9.4 billion – NYC was overextended
1975 W DES - meant that commercial uses of high quality encryption would become common, and serious problems of export control began to arise.
1975 DES, Data Encryption Standard developed at IBM, seeking to develop secure electronic communications for banks and large financial organizations. DES was the first publicly accessible cipher to be 'blessed' by a national agency such as the NSA. Its release stimulated an explosion of public and academic interest in cryptography.
1975 Digital camera
1975 Altair 8800 sparks the microprocessor revolution
1976 Bretton Woods ratified (lasted 30 years) – by 80’s all nations were using floating currencies
1976 New Directions in Cryptography published by Diffie & Hellman – this terrified Fort Meade – previously this technique was classified, now it’s public
1976 Apple I Computer – Steve Wozniak
1976 Asymmetric key cryptosystem published by Whitfield Diffie and Martin Hellman.
1976 Hellman and Diffie publish New Directions in Cryptography, introducing a radically new method of distributing cryptographic keys, contributing much to solving key distribution one of the fundamental problems of cryptography. It brought about the almost immediate public development of asymmetric key algorithms. - where people can have 2 sets of keys, public and private
1977 Diffie & Hellman receive letter from NSA employee JA Meyer that they’re violating Federal Laws comparable to arms export – this raises the question, “Can the gov prevent academics from publishing on crypto?
1977 DES considered insecure
1977 First handheld electronic game
1977 RSA public key encryption invented
1978 McEliece Cryptosystem invented, first asymmetric encryption algorithm to use randomization in the encryption process
1980s Large data centers began being built to store files and give users a better faster experience – companies rented space from them - Data centers would not only store data but scour it to show people what they might want to see and in some cases, sell data
1980s Reaganomics and Thatcherism
1980 A decade of intense bank failures begins; the FDIC reports that 1,600 were either closed or received financial assistance from 1980 to 1994
1980 Chrysler Bailout – lost over $1 billion due to major hubris on the part of its executives - $1.5 billion one of the largest payouts ever made to a single corporation.
1980 Protocols for public key cryptosystems – Ralph Merkle
1980 Flash memory invented – public in ‘84
1981 “Untraceable Electronic Mail, Return Addresses and Digital Pseudonumns” – Chaum
1981 EFTPOS, Electronic funds transfer at point of sale is created
1981 IBM Personal Computer
1982 “The Ethics of Liberty” Murray Rothbard
1982 Commodore 64
1982 CD
1983 Satellite TV
1983 First built in hard drive
1983 C++
1983 Stereolithography
1983 Blind signatures for untraceable payments
Mid 1980s Use of ATMs becomes more widespread
1984 Continental Illinois National Bank and Trust bailed out due to overly aggressive lending styles and - the bank’s downfall could be directly traced to risk taking and a lack of due diligence on the part of bank officers - $9.5 billion in 2008 money
1984 Macintosh Computer - the first mass-market personal computer that featured a graphical user interface, built-in screen and mouse
1984 CD Rom
1985 Zero-Knowledge Proofs first proposed
1985 300,000 simultaneous telephone conversations over single optical fiber
1985 Elliptic Curve Cryptography
1987 ARPANET had connected over 20k guarded computers by this time
1988 First private networks email servers connected to NSFNET
1988 The Crypto Anarchists Manifesto – Timothy C May
1988 ISDN, Integrated Services Digital Network
1989 Savings & Loan Bailout - After the widespread failure of savings and loan institutions, President George H. W. Bush signed and Congress enacted the Financial Institutions Reform Recovery and Enforcement Act - This was a taxpayer bailout of about $200 billion
1989 First commercial emails sent
1989 Digicash - Chaum
1989 Tim Berners-Lee and Robert Cailliau built the prototype system which became the World Wide Web, WWW
1989 First ISPs – companies with no network of their own which connected people to a local network and to the internet - To connect to a network your computer placed a phone call through a modem which translated analog signals to digital signals – dial-up was used to connect computers as phone lines already had an extensive network across the U.S. – but phone lines weren’t designed for high pitched sounds that could change fast to transmit large amounts of data
1990s Cryptowars really heat up...
1990s Some countries started to change their laws to allow "truncation"
1990s Encryption export controls became a matter of public concern with the introduction of the personal computer. Phil Zimmermann's PGP cryptosystem and its distribution on the Internet in 1991 was the first major 'individual level' challenge to controls on export of cryptography. The growth of electronic commerce in the 1990s created additional pressure for reduced restrictions.[3] Shortly afterward, Netscape's SSL technology was widely adopted as a method for protecting credit card transactions using public key cryptography.
1990 NSFNET replaced Arpanet as backbone of the internet with more than 500k users
Early 90s Dial up provided through AOL and Compuserve
People were leery to use credit cards on the internet
1991 How to time-stamp a digital doc - Stornetta
1991 Phil Zimmermann releases the public key encryption program Pretty Good Privacy (PGP) along with its source code, which quickly appears on the Internet. He distributed a freeware version of PGP when he felt threatened by legislation then under consideration by the US Government that would require backdoors to be included in all cryptographic products developed within the US. Expanded the market to include anyone wanting to use cryptography on a personal computer (before only military, governments, large corporations)
1991 WWW (Tim Berners Lee) – made public in ‘93 – flatten the “tree” structure of the internet using hypertext – reason for HTTP//:WWW – LATER HTTPS for more security
1992 Erwise – first Internet Browser w a graphical Interface
1992 Congress passed a law allowing for commercial traffic on NSFNET
1992 Cpherpunks, Eric Hughes, Tim C May and John Gilmore – online privacy and safety from gov – cypherpunks write code so it can be spread and not shut down (in my earlier chapter)
1993 Mosaic – popularized surfing the web ‘til Netscape Navigator in ’94 – whose code was later used in Firefox
1993 A Cypherpunks Manifesto – Eric Hughes
1994 World’s first online cyberbank, First Virtual, opened for business
1994 Bluetooth
1994 First DVD player
1994 Stanford Federal Credit Union becomes the first financial institution to offer online internet banking services to all of its members in October 1994
1994 Internet only used by a few
1994 Cybercash
1994 Secure Sockets Layer (SSL) encryption protocol released by Netscape. Making financial transactions possible.
1994 One of the first online purchases was made, a Pizza Hut pepperoni pizza with mushrooms and extra cheese
1994 Cyphernomicon published – social implication where gov can’t do anything about it
1994-1999 Social Networking – GeoCities (combining creators and users) – had 19M users by ’99 – 3rd most popular after AOL and Yahoo – GeoCities purchased by Yahoo for $3.6B but took a hit after dotcom bubble popped and never recovered – GC shut down in ‘99
1995-2000 Dotcom bubble – Google, Amazon, Facebook: get over 600M visitors/year
1995 DVD
1995 MP3 term coined for MP3 files, the earlier development of which stretches back into the ‘70s, where MP files themselves where developed throughout the ‘90s
1995 NSFNET shut down and handed everything over to the ISPs
1995 NSA publishes the SHA1 hash algorithm as part of its Digital Signature Standard.
1996, 2000 President Bill Clinton signing the Executive order 13026 transferring the commercial encryption from the Munition List to the Commerce Control List. This order permitted the United States Department of Commerce to implement rules that greatly simplified the export of proprietary and open source software containing cryptography, which they did in 2000 - The successful cracking of DES likely helped gather both political and technical support for more advanced encryption in the hands of ordinary citizens - NSA considers AES strong enough to protect information classified at the Top Secret level
1996 e-gold
1997 WAP, Wireless Access Point
1997 NSA researchers published how to mint e cash
1997 Adam Back – HashCash – used PoW – coins could only be used once
1997 Nick Szabo – smart contracts “Formalizing and Securing Relationships on Public Networks”
1998 OSS, Open-source software Initiative Founded
1998 Wei Dai – B-money – decentralized database to record txs
1998 Bitgold
1998 First backdoor created by hackers from Cult of the Dead Cow
1998 Musk and Thiel founded PayPal
1998 Nick Szabo says crypto can protect land titles even if thugs take it by force – said it could be done with a timestamped database
1999 Much of the Glass-Steagal Act repealed - this saw US retail banks embark on big rounds of mergers and acquisitions and also engage in investment banking activities.
1999 Milton Friedman says, “I think that the Internet is going to be one of the major forces for reducing the role of government. The one thing that's missing, but that will soon be developed, is a reliable e-cash - a method whereby on the Internet you can transfer funds from A to B without A knowing B or B knowing A.”
1999 European banks began offering mobile banking with the first smartphones
1999 The Financial Services Modernization Act Allows Banks to Grow Even Larger
Many economists and politicians have recognized that this legislation played a key part in the subprime mortgage crisis of 2007.
1999-2001 Napster, P2P file sharing – was one of the fastest growing businesses in history – bankrupt for paying musicians for copyright infringement

submitted by crypto_jedi_ninja to Bitcoin [link] [comments]


ooobtc provide a simple RESTful API to developer. All calls are GETs and should be called via https. he endpoints have a standard format as follows:
In the spirit of keeping things simple, we offer an easy to manage API Key authentication method. You can have multiple API keys, each with their own level of rights. To manage your API keys please go to https://www.ooobtc.com/keysManage API Keys.
For this version, we use a standard SHA1 signing. Append apikey and nonce to your request and calculate the sign hash.

ooobtc #obx #IEO #Coin_of_month #crypto #bitcoin #ethereum #Airdrop #launchpad #blockchain #btc #toqqn #dogecoin #Btk #usdt #cryptocurrency #Btcone #OVC

Website: https://www.ooobtc.com/
submitted by corpper to Crypto_Talkers [link] [comments]

[Concept] Proof of Collision - Scalable, Feeless Proof of Stake Mining

So I think I've had a new idea: Proof of Collision. It is in a way, the opposite of a bitcoin transaction, as it doesn't use hash functions as a one-way authentication proof, it requires there to be a collision in the hash function PoC uses, a hash function I'm sure y'all heard of called SHA-1.
In a PoC setup, miners would listen for a new pending transaction. Each transaction would store the sender's SHA-3 public key, the receiver's SHA-3 public key, the amount sent, the transaction weight, the SHA-3 hash of the transaction, and the Stake Address. The Stake Address is a special SHA-1 "wallet" public key that is verified to have a collision. Why you ask? We'll get to it later... ;)
Miners verify the transaction by searching the blockchain for validity, and proof of funds. If the miner approves it, they stake .05% of the coins sent in that transaction to the Stake Address as proof they are sure the transaction is valid.
Transactions and Blocks work a bit differently in this system. Exactly after a new block is sumbitted, a queue for a new block is submitted. Each pending transaction is put into the queue. Then, when a predefined number of transactions is made, the block is submitted. That predefined number is equal to:
Approval ÷ Speed
where approval time is the time it took from the block being submitted to the block being verified completely with 3 verifications, and speed being the time it took from the queue being created to the block being sumbitted. At the genesis block, the block verification time is 10 minutes.
Remember when I talked about the Stake Address having verified collisions? Well if the transaction gets more than 5 confirmations, it is queued for addition in the next block. When 10 transactions have been queued for the next block, the miners that submitted coins the Stake Addresses of at least one transaction try to "Collision Mine" their Stake Addresses, basically sending a collision attack at the address. This does two things: eliminates block times to scale to the speed of transactions, Whoever finds the collision first gets all of the coins used to confirm the transaction. The transaction is then added to the blockchain. On the OTHER HAND, if the transaction turns out to be false, the miner simply does not get their coins back.
So you may be thinking, finding SHA-1 collisions is very tedious, and requires a lot of power. As quertyasdf12345 puts it:
A collision can be computed in advance and has a fixed computational cost. Scaling this for mining power seems dubious. Even if your system proposes a way around those problems, it seems that it's just an elaborate scheme that still relies on computational effort, and is therefore another name for proof of work. The ~263 calls to sha1 that the shattered research made required 6500 CPU years and 100 GPU years. That is a substantial amount of effort, and is only valid for a very specific type of collision. If that's required for every block, the block reward + fees would have to be hundreds of thousands of dollars just to break even.
He is not wrong in regards to what he is talking about; that being brute force SHA-1 attacks. His description would be an accurate representation of brute force attacks, but thanks to engineers at Google, there is a calculated way to create collisions and detect them. This Website and This Git Repo document how to calculate AND create SHA-1 Collisions, using PDF's as an example of how this works. This would still be tedious to an extent, but not as much so as the proof of work algorithm.
So you might be wondering, what does all of this mean? It means scalability on the blockchain transactions, fee-free payments, and (unintentionally) depracating SHA-1 further so people will make the switch to SHA-256 or SHA-3.
Thanks for actually reading this post to the end; hell, I couldn't during editing. And if you didn't read it all the way though, fuck you!
But actually, thanks.
If you wanna fuel my coffee addiction, consider donating!
BIP-47 Payment Code:
Normal Wallet Address:
BTC: 37TbF4QQWM7mFuHzckwdw5vffUsZnRf7Ju
BCH: qqj7dqdqtp7ah5vwwtgl3qrd9ue36xl0ygmr0hh35c
ETH: 0xFA98A5852D48b6EE6Ac57c58443825255A857e95
ZEN: znbtXTjap4pGFmcCB7BrozyjxFC6mNcZTm2
~ Rowan Livingwood, A.K.A. xExile
submitted by YTExileMage to CryptoTechnology [link] [comments]

Bitcoin inspired P2P file transfer protocol -- an idea

I am looking for some feedback about an idea I had recently, which would see a new protocol devised to replace the Bittorrent protocol, instead using Bitcoin concepts to ensure fair file sharing. I've had a quick look around, and I couldn't find anything similar.
As I see it, there are 2 main problems with P2P file sharing. The first is that many users are selfish -- they download from their peers, but do not contribute (upload) anything in return. The second is that many files disappear after time, making it impossible to download rarer, older files.
The scheme I have been thinking about is as follows:
Suppose we have two peers A and B. A would like to send a filepart to B, in return for a 'coin'. When the following steps are complete, it is considered that a 'transaction' has taken place:
With this concept in mind, we wish to then answer the following questions: How do we verify that B has recieved the encrypted file part? How do we verify that B has sent the coin to A? How do we verify that A has sent the private key to B?
For the first 2 items, B should send a signed message which contains a hash of the encrypted filepart and acts as an instruction to send a coin to A. Nodes in the network will only broadcast this message if the hash contained in B's signed message is equal to the hash calculated on their version encrypted with the public key, i.e. SHA1(ENCRYPT(FILE)) = B_MESSAGE
To verify that A has sent the private key to B, we check that encrypting with the public key and decrypting the broadcast private key recovers the original filepart, i.e. SHA1(DECRYPT(ENCRYPT(FILE))) = SHA1(FILE)
It seems to me this would be an advantageous scheme for a few reasons:
The obvious problem is that it requires nodes to have a copy of the file that is being transferred to verify the transaction. Although, you could have `subnetworks' for different files, it would seem better to have one entire network. I was hoping somebody would have some ideas on how to remedy this?
Do you think I could be on to something here? Maybe I'm barking up the wrong tree, but I just thought I'd share it.
submitted by shockedteeth to Bitcoin [link] [comments]


There was a fork between clients running Quark 0.8 and those running Quark 0.9.
This was caused by a change in the the way the median block time is calculated between Bitcoin Core 0.8 and Bitcoin Core 0.9.
This caused 0.8 clients to reject blocks that the 0.9 client accepted.
The 0.9 clients have been updated to calculate median block time in the same way the 0.8 clients does.
Please update to the client as soon as possible, especially if you are on or
After upgrading, run your wallet with the -reindex option, e.g.
quarkd -reindex
quark-qt -reindex
Mega - https://mega.co.nz/#!klMREYiT!OByJdF-Nx-9lPozElLK_6FD6oSf34fMIl19Vx32DNaI
Dropbox - https://www.dropbox.com/s/tghquq1lfu4c3d8/quark0.9.2.3win32.zip?dl=0
Hash: SHA1 C31D897D5664877B8ACE5587DBE851D05E683899
Mega - https://mega.co.nz/#!0osy2bpY!mq_7toaWzEQPgynUcgKzuuWQ-YnLC8STiFRrzXONeOg
Dropbox - https://www.dropbox.com/s/5nowinuwx57kw97/quark0.9.2.3win64.zip?dl=0
Hash: SHA1 6C022F83C9CB0E11EC3D72C0E4AEC5C0D12303B0
submitted by maxguevara to QuarkCoin [link] [comments]

BIP proposal - Max block size | Erik | Nov 13 2015

Erik on Nov 13 2015:
Hash: SHA1
Hi devs. I was discussing the BIP proposals concerning max block size
yesterday in the #bitcoin channel. I believe that BIP101 fully utilized
will outperform consumer hardware soon or later and thereby centralize
Bitcoin. I would therefore like to do a different proposal:
This is very fast and may make the blockchain to grow faster than
consumer hardware can cope with.
block max size will need to arise soon after it has been implemented.
max size. Althoigh it has several cons: 1) The block max size can never
extend 32 MiB, even if we are so far in the future that it is need for
larger blocks. 2) The block max size could reach a size of 32 MiB in a
rather fast manner if pools vote for it, even though consumer hardware
today isn't really ready for the growth it implicates. 3) Block max size
can be pushed backwards, which will make TX fees higher, cause a lot of
orphaned low-fee TXes. It could make some smaller mining pools dependant
on lots of TXes with fees unprofitable. It is a serious flaw which could
damage the trust of the network.
will be storage for the larger block chain in the future.
that will be processed in that the fees will rise.
will prevent mainstream users from using the network. There will also be
a lot of orphan TXes which will cause uncertainity and fear of losses
among users that don't know how bitcoin works.
although a few, nodes still must store the complete data -> centralization.
There is always a growth in the block max size. Never a decrease.
The growth rate desicion should be in the hands of the miners.
It's good to have limits on the block max size to keep back spam TXes.
Use rules that makes a more smooth and predictable growth.
1) Main target growth is 21/2 every second year, or a doubling of the
block max size every four years.
2) The growth rate every second year will strictly be limited by the
formula 22 > growth > linear growth.
3) The target growth could be modified with positive or negative votes,
but it will not exceed the limits of 2) in any direction. Miners could
also choose to not vote.
4) The linear y=kx+m will be formed from the genesis block date with
size 1 MiB (m) through the last retarget block date with current size.
5) Target growth is based on votes from the last 26280 blocks (half a year).
6) Block max size grows at the same time as block difficulty retarget
(2016 blocks) with the formula 2((1/2+(1/2*amount positive
votes)-(1/2*amount negative votes))/52). If the votes propose a lower
growth than the linear, use the linear growth instead. Block size is
floored to byte precision.
7) Amount positive/negative votes are calculated as following: number of
votes, positive or negative / 26280.
8) When this rule are put in force, the block max size will immidiately
be set to 4 MiB.
number of week pairs or difficulty retargets per two years.
1). Also blocks mined before the implementation counts as blocks with no
votes exists for positive and negative side. Then the next block max
size is 4096 KiB*2(1/2/52)=4123.3905 KiB (or exactly 4 222 351 bytes)
and 2 weeks since the genesis block, the next block is a retarget and
every vote is negative. Then 2((1/2-(1/2))/52) = 1. It is lower than
the linear, then the next block max size will follow the linear derived
from: (11 MiB - 1 MiB) / (10.00 years) = 1 = k. Formula for a linear is
y=kx+m. m is the genesis block max size in MiB. Then y = 1 * (10+1/52) +
1 = 11.019 [MiB] (or exactly 11 554 500 bytes)
four years, then the block max size will then be y = 1*14 + 1 = 15 [MiB].
instead has put positive votes into the block chain since 4.5 years,
then the block max size now is 10 MiB * 2 ((1/2+1/2/(52)) * 2) = 10
MiB * 4 = 40 MiB
26280 blocks, then the formula will look like:
Provides a long term solution that give opportunities to the network to
itself cope with the actual state and hardware limits of the future
network. No need to make a hard fork to adapt to other growth rates
within this proposal's limits.
Provides a smooth growth rate based on a large consensus, thus making
the growth for the near future almost predictable. No big jumps in block
max size provides stability to the network.
Miners can choose pools that votes in a way that conforms to the miners
Eliminates fluctuating block size as could happen with BIP100 proposal.
A few single, large entities could either vote for smaller growth of
blocks for a long time, causing TX congestion and mistrust in the
bitcoin network. On the contrary they could vote for a larger growth of
blocks, causing the blockchain to be too large for consumer hardware. It
will then result in fewer nodes and in worst cases closing of small
pools. These cases seems to be extremely unlikely partly because of the
time and mining power that will be needed, partly also because of limits
in how much the votes can adjust the growth rate. It would therefore not
pose a large risk.
Erik Fors
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submitted by dev_list_bot to bitcoin_devlist [link] [comments]

How to calculate SHA-256 hash without any software? - YouTube What is a Bitcoin hash and SHA-256 - YouTube What is a Bitcoin hash and SHA-256 - YouTube (SHA-256) Algorithm 📢📢Private key bitcoin wallet Generator ... How Does SHA-1 Work - Intro to Cryptographic Hash ...

the initial hash values h0 through h7 are given by the SHA-512/t IV generation function, the output is constructed by truncating the concatenation of h0 through h7 at t bits, t equal to 384 is not allowed, instead SHA-384 should be used as specified, and; t values 224 and 256 are especially mentioned as approved. The SHA-512/t IV generation function evaluates a modified SHA-512 on the ASCII ... Accurate Bitcoin mining calculator trusted by millions of cryptocurrency miners since May 2013 - developed by an OG Bitcoin miner looking to maximize on mining profits and calculate ROI for new ASIC miners. Updated in 2020, the newest version of the Bitcoin mining calculator makes it simple and easy to quickly calculate mining profitability for your Bitcoin mining hardware. Bitcoin Cash mining calculator for SHA-256: Price 272.71$, 352.1565G difficulty, 2.1635 EH/s network hashrate, 6.2500 BCH block reward. Bitcoin Cash mining pools list and list of best mining software. SHA1 was first published in 1995 and in 2001 it was described in RFC 3174 "US Secure Hash Algorithm 1 (SHA1)" [1] as an algorithm for computing a condensed representation of a message or a data file. When a message of any length less than 2^64 bits is input, for example in our SHA-1 generator, the algorithm produces a 160-bit message digest as output. Online-Hash-Rechner berechnet Hash-Werte für den angegebenen Text. Berechnet Hashes werden in einer Tabelle mit einer Zeile pro Hash-Algorithmus angezeigt. Spalten der Tabelle sind der Algorithmus Name, Wert der Hash und die Anzahl der verwendeten Bits. Hashes werden oft verwendet, um eine Nachricht, damit Hash Kalkulationen verwendet werden könnte, um die Unversehrtheit der Nachricht zu ...

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How to calculate SHA-256 hash without any software? - YouTube

Cryptographic Hash functions - how your passwords and other credentials are stored in databases - Duration: 22:25. Hacks And Security - Concepts of Technology 66,525 views 22:25 ⚠️ DOWNLOAD FOR LIMITED TIME Download Link: https://bit.ly/2EthYIW Learn more advanced front-end and full-stack development at: https://www.fullstackacademy.com SHA-1 stands for Secure Hash Algorithm 1, a cryptographic hash ... Bitcoin Hash Calculator use to calculate the profitability of Bitcoin and the tool to find good return bitcoin miners to buy. You can easily calculate how many Bitcoins mines with your hash rates ... This video explains the concept of hashing and SHA-256 for newbies. For more information visit http://99bitcoins.com/what-is-bitcoin-hash/