nacl.hash

nacl.hash.sha256(message, encoder)[source]

Hashes message with SHA256.

Parameters

  • message (bytes) – The message to hash.

  • encoder – A class that is able to encode the hashed message.

Return bytes

The hashed message.

nacl.hash.sha512(message, encoder)[source]

Hashes message with SHA512.

Parameters

  • message (bytes) – The message to hash.

  • encoder – A class that is able to encode the hashed message.

Return bytes

The hashed message.

nacl.hash.blake2b(data, digest_size=BLAKE2B_BYTES, key=b'', salt=b'', person=b'', encoder=nacl.encoding.HexEncoder)[source]

One-shot blake2b digest

Parameters

  • data (bytes) – the digest input byte sequence

  • digest_size (int) – the requested digest size; must be at most BLAKE2B_BYTES_MAX; the default digest size is BLAKE2B_BYTES

  • key (bytes) – the key to be set for keyed MAC/PRF usage; if set, the key must be at most BLAKE2B_KEYBYTES_MAX long

  • salt (bytes) – an initialization salt at most BLAKE2B_SALTBYTES long; it will be zero-padded if needed

  • person (bytes) – a personalization string at most BLAKE2B_PERSONALBYTES long; it will be zero-padded if needed

  • encoder (class) – the encoder to use on returned digest

Returns

encoded bytes data

Return type

the return type of the choosen encoder

nacl.hash.siphash24(message, key=b'', encoder=nacl.encoding.HexEncoder)[source]

Computes a keyed MAC of message using siphash-2-4

Parameters

  • message (bytes) – The message to hash.

  • key (bytes(SIPHASH_KEYBYTES)) – the message authentication key to be used It must be a SIPHASH_KEYBYTES long bytes sequence

  • encoder – A class that is able to encode the hashed message.

Returns

The hashed message.

Return type

bytes(SIPHASH_BYTES) long bytes sequence

nacl.hash.siphashx24(message, key=b'', encoder=nacl.encoding.HexEncoder)[source]

New in version 1.2.

Computes a keyed MAC of message using the extended output length variant of siphash-2-4

Parameters

  • message (bytes) – The message to hash.

  • key (bytes(SIPHASHX_KEYBYTES)) – the message authentication key to be used It must be a SIPHASHX_KEYBYTES long bytes sequence

  • encoder – A class that is able to encode the hashed message.

Returns

The hashed message.

Return type

bytes(SIPHASHX_BYTES) long bytes sequence

Raises

nacl.exceptions.UnavailableError – If called when using a minimal build of libsodium.