[−][src]Crate sha2
An implementation of the SHA-2 cryptographic hash algorithms.
There are 6 standard algorithms specified in the SHA-2 standard:
Sha224
, which is the 32-bitSha256
algorithm with the result truncated to 224 bits.Sha256
, which is the 32-bitSha256
algorithm.Sha384
, which is the 64-bitSha512
algorithm with the result truncated to 384 bits.Sha512
, which is the 64-bitSha512
algorithm.Sha512Trunc224
, which is the 64-bitSha512
algorithm with the result truncated to 224 bits.Sha512Trunc256
, which is the 64-bitSha512
algorithm with the result truncated to 256 bits.
Algorithmically, there are only 2 core algorithms: Sha256
and Sha512
.
All other algorithms are just applications of these with different initial
hash values, and truncated to different digest bit lengths.
Usage
use hex_literal::hex; use sha2::{Sha256, Sha512, Digest}; // create a Sha256 object let mut hasher = Sha256::new(); // write input message hasher.update(b"hello world"); // read hash digest and consume hasher let result = hasher.finalize(); assert_eq!(result[..], hex!(" b94d27b9934d3e08a52e52d7da7dabfac484efe37a5380ee9088f7ace2efcde9 ")[..]); // same for Sha512 let mut hasher = Sha512::new(); hasher.update(b"hello world"); let result = hasher.finalize(); assert_eq!(result[..], hex!(" 309ecc489c12d6eb4cc40f50c902f2b4d0ed77ee511a7c7a9bcd3ca86d4cd86f 989dd35bc5ff499670da34255b45b0cfd830e81f605dcf7dc5542e93ae9cd76f ")[..]);
Also see RustCrypto/hashes readme.
Re-exports
pub use digest; |
Structs
Sha224 | The SHA-256 hash algorithm with the SHA-224 initial hash value. The result is truncated to 224 bits. |
Sha256 | The SHA-256 hash algorithm with the SHA-256 initial hash value. |
Sha384 | The SHA-512 hash algorithm with the SHA-384 initial hash value. The result is truncated to 384 bits. |
Sha512 | The SHA-512 hash algorithm with the SHA-512 initial hash value. |
Sha512Trunc224 | The SHA-512 hash algorithm with the SHA-512/224 initial hash value. The result is truncated to 224 bits. |
Sha512Trunc256 | The SHA-512 hash algorithm with the SHA-512/256 initial hash value. The result is truncated to 256 bits. |
Traits
Digest | The |