hash40

Converts a variable-length string to a 32-byte, hexadecimal string, using the MD5 algorithm.
Note: It is not possible to convert the hash result back to the source string.

hash40(input [, algorithm] [, encoding] [, numIterations]) → returns string

Argument Reference

input any
Required

String for hashing

algorithm string

The algorithm to use to hash the string. Supported are the following algorithms:
- CFMX_COMPAT: generating a hash string using classic CFML algorithm.
- MD5: (default) Generates a 32-character, hexadecimal string, using the MD5 algorithm.
- SHA: Generates a 28-character string using the Secure Hash Standard SHA-1 algorithm specified by Nation Institute of Standards and Technology (NIST) FIPS-180-2.
- SHA-256: Generates a 44-character string using the SHA-256 algorithm specified by FIPS-180-2.
- SHA-384: Generates a 64-character string using the SHA-384 algorithm specified by FIPS-180-2.
- SHA-512: Generates an 88-character string using the SHA-1 algorithm specified by FIPS-180-2.

Values:

CFMX_COMPAT
MD5
SHA
SHA-1
SHA-256
SHA-384
SHA-512

encoding string

Encoding which will be used by the hash algorithm

numIterations numeric
Default: `1`

number of iterations

Compatibility

Lucee:

DEPRECATED since version 4.5 This function only exists for backward compatibility to Lucee 4.0 or older version that has produced an incorrect result for non us-ascii characters, Only use this function for backward compatibility.

Examples
Sample code invoking the hash40 function

Signup for cfbreak to stay updated on the latest news from the ColdFusion / CFML community. One email, every friday.

Fork me on GitHub