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The Microsoft Windows platform specific Cryptographic Application Programming Interface (also known variously as CryptoAPI, Microsoft Cryptography API, MS-CAPI or simply CAPI) is an application programming interface included with Microsoft Windows operating systems that provides services to enable developers to secure Windows-based applications using cryptography.
This table denotes, if a cryptography library provides the technical requisites for FIPS 140, and the status of their FIPS 140 certification (according to NIST's CMVP search, [27] modules in process list [28] and implementation under test list).
Algorithm Output size (bits) Internal state size [note 1] Block size Length size Word size Rounds; BLAKE2b: 512 512 1024 128 [note 2]: 64 12 BLAKE2s: 256 256 512 64 [note 3]: 32 10
1.0 Oct 2010: Initial version 1.1: Jan 2013 1.2: Jun 2014 Cryptographic Operations (Encrypt, Decrypt, Sign etc.). Introduction of Profiles, including Application Identifiers for tape libraries. 1.3: 2015 Streaming Cryptographic Operations; Client Registration; Locate offset/Limit; Deprecate Templates; RNG queries; 1.4: 2016
The CAPI/CSP architecture had its origins in the era of restrictive US government controls on the export of cryptography. Microsoft's default or "base" CSP then included with Windows was limited to 512-bit RSA public-key cryptography and 40-bit symmetric cryptography, the maximum key lengths permitted in exportable mass market software at the time.
The revision DTLS 1.2 based on TLS 1.2 was published in January 2012. [33] TLS 1.3 (2018) specified in RFC 8446 includes major optimizations and security improvements. QUIC (2021) specified in RFC 9000 and DTLS 1.3 (2022) specified in RFC 9147 builds on TLS 1.3. The publishing of TLS 1.3 and DTLS 1.3 obsoleted TLS 1.2 and DTLS 1.2.
HC-256 is a stream cipher designed to provide bulk encryption in software at high speeds while permitting strong confidence in its security. [1] A 128-bit variant was submitted as an eSTREAM cipher candidate and has been selected as one of the four final contestants in the software profile. [2] [3]
Convert counter to an octet string C of length 4 with the primitive I2OSP: C = I2OSP (counter, 4) C = int. to_bytes (counter, 4, "big") # b. Concatenate the hash of the seed Z and C to the octet string T: T = T || Hash (Z || C) T += hash_func (seed + C). digest counter += 1 # 4. Output the leading l octets of T as the octet string mask. return ...