Crypt::Digest::BLAKE2b_256(3) | User Contributed Perl Documentation | Crypt::Digest::BLAKE2b_256(3) |
NAME¶
Crypt::Digest::BLAKE2b_256 - Hash function BLAKE2b [size: 256 bits]
SYNOPSIS¶
### Functional interface: use Crypt::Digest::BLAKE2b_256 qw( blake2b_256 blake2b_256_hex blake2b_256_b64 blake2b_256_b64u blake2b_256_file blake2b_256_file_hex blake2b_256_file_b64 blake2b_256_file_b64u ); # calculate digest from string/buffer $blake2b_256_raw = blake2b_256('data string'); $blake2b_256_hex = blake2b_256_hex('data string'); $blake2b_256_b64 = blake2b_256_b64('data string'); $blake2b_256_b64u = blake2b_256_b64u('data string'); # calculate digest from file $blake2b_256_raw = blake2b_256_file('filename.dat'); $blake2b_256_hex = blake2b_256_file_hex('filename.dat'); $blake2b_256_b64 = blake2b_256_file_b64('filename.dat'); $blake2b_256_b64u = blake2b_256_file_b64u('filename.dat'); # calculate digest from filehandle $blake2b_256_raw = blake2b_256_file(*FILEHANDLE); $blake2b_256_hex = blake2b_256_file_hex(*FILEHANDLE); $blake2b_256_b64 = blake2b_256_file_b64(*FILEHANDLE); $blake2b_256_b64u = blake2b_256_file_b64u(*FILEHANDLE); ### OO interface: use Crypt::Digest::BLAKE2b_256; $d = Crypt::Digest::BLAKE2b_256->new; $d->add('any data'); $d->addfile('filename.dat'); $d->addfile(*FILEHANDLE); $result_raw = $d->digest; # raw bytes $result_hex = $d->hexdigest; # hexadecimal form $result_b64 = $d->b64digest; # Base64 form $result_b64u = $d->b64udigest; # Base64 URL Safe form
DESCRIPTION¶
Provides an interface to the BLAKE2b_256 digest algorithm.
EXPORT¶
Nothing is exported by default.
You can export selected functions:
use Crypt::Digest::BLAKE2b_256 qw(blake2b_256 blake2b_256_hex blake2b_256_b64 blake2b_256_b64u blake2b_256_file blake2b_256_file_hex blake2b_256_file_b64 blake2b_256_file_b64u);
Or all of them at once:
use Crypt::Digest::BLAKE2b_256 ':all';
FUNCTIONS¶
blake2b_256¶
Logically joins all arguments into a single string, and returns its BLAKE2b_256 digest encoded as a binary string.
$blake2b_256_raw = blake2b_256('data string'); #or $blake2b_256_raw = blake2b_256('any data', 'more data', 'even more data');
blake2b_256_hex¶
Logically joins all arguments into a single string, and returns its BLAKE2b_256 digest encoded as a hexadecimal string.
$blake2b_256_hex = blake2b_256_hex('data string'); #or $blake2b_256_hex = blake2b_256_hex('any data', 'more data', 'even more data');
blake2b_256_b64¶
Logically joins all arguments into a single string, and returns its BLAKE2b_256 digest encoded as a Base64 string, with trailing '=' padding.
$blake2b_256_b64 = blake2b_256_b64('data string'); #or $blake2b_256_b64 = blake2b_256_b64('any data', 'more data', 'even more data');
blake2b_256_b64u¶
Logically joins all arguments into a single string, and returns its BLAKE2b_256 digest encoded as a Base64 URL Safe string (see RFC 4648 section 5).
$blake2b_256_b64url = blake2b_256_b64u('data string'); #or $blake2b_256_b64url = blake2b_256_b64u('any data', 'more data', 'even more data');
blake2b_256_file¶
Reads file (defined by filename or filehandle) content, and returns its BLAKE2b_256 digest encoded as a binary string.
$blake2b_256_raw = blake2b_256_file('filename.dat'); #or $blake2b_256_raw = blake2b_256_file(*FILEHANDLE);
blake2b_256_file_hex¶
Reads file (defined by filename or filehandle) content, and returns its BLAKE2b_256 digest encoded as a hexadecimal string.
$blake2b_256_hex = blake2b_256_file_hex('filename.dat'); #or $blake2b_256_hex = blake2b_256_file_hex(*FILEHANDLE);
BEWARE: You have to make sure that the filehandle is in binary mode before you pass it as argument to the addfile() method.
blake2b_256_file_b64¶
Reads file (defined by filename or filehandle) content, and returns its BLAKE2b_256 digest encoded as a Base64 string, with trailing '=' padding.
$blake2b_256_b64 = blake2b_256_file_b64('filename.dat'); #or $blake2b_256_b64 = blake2b_256_file_b64(*FILEHANDLE);
blake2b_256_file_b64u¶
Reads file (defined by filename or filehandle) content, and returns its BLAKE2b_256 digest encoded as a Base64 URL Safe string (see RFC 4648 section 5).
$blake2b_256_b64url = blake2b_256_file_b64u('filename.dat'); #or $blake2b_256_b64url = blake2b_256_file_b64u(*FILEHANDLE);
METHODS¶
The OO interface provides the same set of functions as Crypt::Digest.
new¶
$d = Crypt::Digest::BLAKE2b_256->new();
clone¶
$d->clone();
reset¶
$d->reset();
add¶
$d->add('any data'); #or $d->add('any data', 'more data', 'even more data');
addfile¶
$d->addfile('filename.dat'); #or $d->addfile(*FILEHANDLE);
add_bits¶
$d->add_bits($bit_string); # e.g. $d->add_bits("111100001010"); #or $d->add_bits($data, $nbits); # e.g. $d->add_bits("\xF0\xA0", 16);
hashsize¶
$d->hashsize; #or Crypt::Digest::BLAKE2b_256->hashsize(); #or Crypt::Digest::BLAKE2b_256::hashsize();
digest¶
$result_raw = $d->digest();
hexdigest¶
$result_hex = $d->hexdigest();
b64digest¶
$result_b64 = $d->b64digest();
b64udigest¶
$result_b64url = $d->b64udigest();
SEE ALSO¶
- CryptX, Crypt::Digest
- <https://blake2.net/>
- <https://tools.ietf.org/html/rfc7693>
2024-03-08 | perl v5.40.0 |