Hashes any of several types of source data using the specified hashing algorithm, and returns a RAW message digest value whose size and security depends on the algorithm.
A character string that specifies the hashing algorithm to hash the data specified by data-to-hash. You can specify one of the following options, in increasing order of security and decreasing order of performance:
"MD5" — RSA Message Digest Hash Algorithm, which returns a 16-byte RAW binary message digest value.
"SHA-1" — United States Government Secure Hash Algorithm, which returns a RAW 20-byte binary message digest value.
"SHA-256" — United States Government Secure Hash Algorithm, which returns a RAW 32-byte binary message digest value.
"SHA-512" — United States Government Secure Hash Algorithm, which returns a RAW 64-byte binary message digest value.
data-to-hash
The source data to hash. The data may be of type CHARACTER, LONGCHAR, RAW, or MEMPTR. If the data is a CHARACTER or LONGCHAR value, the AVM converts it to UTF-8 (which ensures a consistent value regardless of code page settings). To avoid this automatic conversion, specify a RAW or MEMPTR value.
hash-key
An optional key value to use in the hash operation. The key may be of type CHARACTER, LONGCHAR, RAW, or MEMPTR. If the key is a CHARACTER or LONGCHAR value, the AVM converts it to UTF-8 (which ensures a consistent value regardless of code page settings). To avoid this automatic conversion, specify a RAW or MEMPTR value. This key value is combined with the source data before the hash operation begins.
If the hash-key value contains a null character, the null character is included in the hash operation.
"MD5" — RSA Message Digest Hash Algorithm, which returns a 16-byte RAW binary message digest value.