BLAKE

BLAKE Algorithm More...

Typedefs
typedef hasher< detail::blake_provider<>, mixin::blake_mixin >	digestpp::blake
	BLAKE hash function (SHA-3 finalist)
template<size_t N>
using	digestpp::static_size::blake = hasher<detail::blake_provider<N>, mixin::blake_mixin>
	BLAKE hash function (static-size version)

Detailed Description

BLAKE Algorithm

Typedef Documentation

blake [1/2]

typedef hasher<detail::blake_provider<>, mixin::blake_mixin> digestpp::blake

BLAKE hash function (SHA-3 finalist)

Original BLAKE algorithm, finalist in the NIST SHA-3 competition. Based on the ChaCha stream cipher and HAIFA construction. Designed by Jean-Philippe Aumasson, Luca Henzen, Willi Meier, and Raphael C.-W. Phan.

Type:

Cryptographic hash function.

Output size:

224 / 256 / 384 / 512 bits

Default size:

none (must be specified)

Exceptions

std::runtime_error

if the requested digest size is not supported

Optional parameters:

• set_salt() - Salt for hash randomization
  • 16 bytes for BLAKE-224 and BLAKE-256
  • 32 bytes for BLAKE-384 and BLAKE-512

Optional parameters:

salt

See mixin::blake_mixin for the description of optional parameters.

Example:

 // Output a 256-bit BLAKE digest of a string
digestpp::blake hasher(256);
hasher.absorb("The quick brown fox jumps over the lazy dog");
std::cout << hasher.hexdigest() << '\n';

Example output:

7576698ee9cad30173080678e5965916adbb11cb5245d386bf1ffda1cb26c9d7

See also

hasher, mixin::blake_mixin, digestpp::static_size::blake

blake [2/2]

template<size_t N>

using digestpp::static_size::blake = hasher<detail::blake_provider<N>, mixin::blake_mixin>

BLAKE hash function (static-size version)

Variant of BLAKE with output size specified as template parameter.

Type:

Cryptographic hash function.

Output size:

224 / 256 / 384 / 512 bits

Optional parameters:

• set_salt() - Salt for hash randomization
  • 16 bytes for BLAKE-224 and BLAKE-256
  • 32 bytes for BLAKE-384 and BLAKE-512

Optional parameters:

salt

See mixin::blake_mixin for the description of optional parameters.

Example:

 // Output a 256-bit BLAKE digest of a string
digestpp::static_size::blake<256> hasher;
hasher.absorb("The quick brown fox jumps over the lazy dog");
std::cout << hasher.hexdigest() << '\n';

Example output:

7576698ee9cad30173080678e5965916adbb11cb5245d386bf1ffda1cb26c9d7

See also

hasher, mixin::blake_mixin, digestpp::blake