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US Secure Hash Algorithms (SHA and SHA-based HMAC and HKDF)
Tony Hansen,Donald E. Eastlake rd +1 more
- Vol. 6234, pp 1-127
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TLDR
As with RFC 4634, code to perform SHA based HMACs is included and, new in this version, code for HKDF (RFC 5869) is included.Abstract:
This document replaces RFC 4634, fixing errata and adding code for an
HMAC-based extract-and-expand key derivation function. The United
States of America has adopted a suite of secure hash algorithms
(SHAs), including four beyond SHA-1, as part of a Federal Information
Processing Standard (FIPS), specifically SHA-224, SHA-256, SHA-384,
and SHA-512. This document makes open source code performing the SHA
hash functions conveniently available to the Internet community. The
sample code supports input strings of arbitrary bit length. Much of
the text herein was adapted by the authors from FIPS 180-2. As with
RFC 4634, code to perform SHA based HMACs is included and, new in this
version, code for HKDF (RFC 5869) is included.read more
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References
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HMAC: Keyed-Hashing for Message Authentication
TL;DR: This document describes HMAC, a mechanism for message authentication using cryptographic hash functions that can be used with any iterative cryptographic hash function, e.g., MD5, SHA-1, in combination with a secret shared key.
HMAC-based Extract-and-Expand Key Derivation Function (HKDF)
Hugo Krawczyk,Pasi Eronen +1 more
TL;DR: This document specifies a simple Hashed Message Authentication Code (HMAC)-based key derivation function (HKDF), which can be used as a building block in various protocols and applications.
Randomness Requirements for Security
TL;DR: This document recommends the use of truly random hardware techniques and shows that the existing hardware on many systems can be used for this purpose and provides suggestions to ameliorate the problem when a hardware solution is not available.
US Secure Hash Algorithms (SHA and HMAC-SHA)
Tony Hansen,D. E. Eastlake rd +1 more
TL;DR: SHA-1's sample code from RFC 3174 has also been updated to handle input strings of arbitrary bit length, and code to perform SHA-based HMACs, with arbitrarybit length text, is included.
Additional Algorithms and Identifiers for RSA Cryptography for use in the Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) Profile
TL;DR: This document describes the conventions for using the RSA Probabilistic Signature Scheme (RSASSA-PSS) signature algorithm, the RSA Encryption Scheme - Optimal Asymmetric Encryption Padding (RSAES-OAEP) key transport algorithm and additional one-way hash functions with the Public-Key Cryptography Standards (PKCS) #1 version 1.5 signature algorithm in the Internet X.509 Public Key Infrastructure (PKI).