SHA1

SHA1 Algorithm More...

Typedefs
typedef hasher< detail::sha1_provider >	digestpp::sha1
	SHA-1 hash function.

Detailed Description

SHA1 Algorithm

Typedef Documentation

sha1

typedef hasher<detail::sha1_provider> digestpp::sha1

SHA-1 hash function.

First generation Secure Hash Algorithm designed by the NSA and published by NIST in 1995.

Warning

SHA-1 is cryptographically broken and should NOT be used for security purposes. Practical collision attacks exist since 2017. Use SHA-256, SHA-3, or any other hash function instead.

SHA-1 may still be acceptable for legacy system compatibility (when security is not required).

Type:

Cryptographic hash function.

Output size:

160 bits

Default size:

160 bits

Example:

 // Output a SHA1 digest of a string
digestpp::sha1 hasher;
hasher.absorb("The quick brown fox jumps over the lazy dog");
std::cout << hasher.hexdigest() << '\n';

Example output:

2fd4e1c67a2d28fced849ee1bb76e7391b93eb12

See also

hasher, sha256, sha512, sha3