const type: digestAlgorithm

Enumeration of message digest algorithms. Defines: NO_DIGEST, MD4, MD5, RIPEMD160, SHA1, SHA224, SHA256, SHA384 and SHA512.

const func string: md4 (in var string: message)

Compute a message digest with the MD4 message digest algorithm. The security of MD4 has been severely compromised. This function is provided for backward compatibility.

Returns:

the MD4 message digest (a string of 16 bytes).

Raises:

RANGE_ERROR - If message contains a character beyond '\255;'.

const func string: md5 (in var string: message)

Compute a message digest with the MD5 message digest algorithm. MD5 is considered to be cryptographically broken. This function is provided for backward compatibility.

Returns:

the MD5 message digest (a string of 16 bytes).

Raises:

RANGE_ERROR - If message contains a character beyond '\255;'.

const func string: ripemd160 (in var string: message)

Compute a message digest with the RIPEMD-160 message digest algorithm.

Returns:

the RIPEMD-160 message digest (a string of 20 bytes).

Raises:

RANGE_ERROR - If message contains a character beyond '\255;'.

const func string: sha1 (in var string: message)

Compute a message digest with the SHA-1 secure hash algorithm.

Returns:

the SHA-1 message digest (a string of 20 bytes).

Raises:

RANGE_ERROR - If message contains a character beyond '\255;'.

const func string: sha224 (in var string: message)

Compute a message digest with the SHA-224 secure hash algorithm.

Returns:

the SHA-224 message digest (a string of 28 bytes).

Raises:

RANGE_ERROR - If message contains a character beyond '\255;'.

const func string: sha256 (in var string: message)

Compute a message digest with the SHA-256 secure hash algorithm.

Returns:

the SHA-256 message digest (a string of 32 bytes).

Raises:

RANGE_ERROR - If message contains a character beyond '\255;'.

const func string: sha384 (in var string: message)

Compute a message digest with the SHA-384 secure hash algorithm.

Returns:

the SHA-384 message digest (a string of 48 bytes).

Raises:

RANGE_ERROR - If message contains a character beyond '\255;'.

const func string: sha512 (in var string: message)

Compute a message digest with the SHA-512 secure hash algorithm.

Returns:

the SHA-512 message digest (a string of 64 bytes).

Raises:

RANGE_ERROR - If message contains a character beyond '\255;'.

const func string: msgDigest (in digestAlgorithm: digestAlg, in string: message)

Compute a message digest with the given digestAlgorithm.

Parameters:

digestAlg - The digestAlgorithm to be used.

Returns:

the message digest of the message.

Raises:

RANGE_ERROR - If message contains a character beyond '\255;'.

const func integer: blockSize (in digestAlgorithm: digestAlg)

Block size used by the given digestAlgorithm.

Returns:

the block size in bytes used by the message digest algorithm.

const func integer: digestSize (in digestAlgorithm: digestAlg)

Size of a message digest computed with the given digestAlgorithm.

Returns:

the size of a message digest in bytes.