SHA1 BLOCK DIAGRAM
SHA-1 - Wikipedia
OverviewDevelopmentApplicationsCryptanalysis and validationExamples and pseudocodeIn cryptography, SHA-1 is a cryptographic hash function which takes an input and produces a 160-bit hash value known as a message digest – typically rendered as a hexadecimal number, 40 digits long. It was designed by the United States National Security Agency, and is a U.S. Federal Information Processing Standard. Since 2005 SHA-1 has not been considered secure against well-funded opponents, and since 2010 many organizations have recommended its replacement by SHA-2 or SHA-3. All major..See more on enpedia · Text under CC-BY-SA license
SHA-1 Secure Hash Function (SHA1)
PDF fileModule as shown in the block diagram. The SHA1 Engine Module applies the SHA1 loops on a single 512-bit message block, while the Input Interface Module performs the message padding. The processing of one 512-bit block is performed in 82 clock cycles, and the bit-rate achieved is 6ps/MHz on the input of the SHA1core.
HMAC - Wikipedia
OverviewDefinitionImplementationDesign principlesSecurityExamplesIn cryptography, an HMAC is a specific type of message authentication code involving a cryptographic hash function and a secret cryptographic key. It may be used to simultaneously verify both the data integrity and the authenticity of a message, as with any MAC. Any cryptographic hash function, such as SHA-256 or SHA-3, may be used in the calculation of an HMAC; the resulting MAC algorithm is termed HMAC-X, where X is the hash function used. The cryptographic strength of the HMAC depends upon thSee more on enpedia · Text under CC-BY-SA license