SHAdigest (String function): Difference between revisions
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Revision as of 21:18, 16 March 2016
20-byte SHA digest (String class)
The SHAdigest intrinsic function returns the 20-byte (always) binary string that is the SHA-1 digest of the method object string.
Syntax
%outString = string:SHAdigest
Syntax terms
| %outString | A string variable to receive the SHA-1 digest of the method object string. |
|---|---|
| string | The string to which the method is applied. |
Usage notes
- SHA (Secure Hash Algorithm) is a set of cryptographic hashing functions; SHAdigest provides SHA-1, which was the most commonly used. SHA-1 is no longer recommended for the signing of Internet security certificates. A complete explanation of SHA hashing can easily be found on the internet.
- This method is useful for storing one-way encrypted passwords in a file. SHA is considered unreversible. That is, the only way to get a password given a digest is brute force: trying passwords until one produces the digest (more or less a hash) value.
- SHAdigest is available for use by Model 204 V7.5 or Janus Network Security customers.
- SHAdigest is available as of Sirius Mods Version 7.3.
Examples
The 20-byte SHA-1 hash of a string is typically expressed as a 40-digit hex value. In the following example, the output string from the SHAdigest method is converted to hex using the StringToHex intrinsic method:
printText {~} is {'this is a simple test':shadigest:stringtohex}
The result is:
'this is a simple test':shadigest:stringtohex is BC38AA2D6769639946806616C14AF0C69477AABE
See also
- Additional one-way ciphers:
- Two-way ciphers:
- AES128decrypt and AES128encrypt (String functions)
- AES192decrypt and AES192encrypt (String functions)
- AES256decrypt and AES256encrypt (String functions)
- AES128CBCdecrypt and AES128CBCencrypt (String functions)
- AES192CBCdecrypt and AES192CBCencrypt (String functions)
- AES256CBCdecrypt and AES256CBCencrypt (String functions)
- DEA64decrypt and DEA64encrypt (String functions)
- DEA128decrypt and DEA128encrypt (String functions)
- DEA192decrypt and DEA192encrypt (String functions)
- DEA64CBCdecrypt and DEA64CBCencrypt (String functions)
- DEA128CBCdecrypt and DEA128CBCencrypt (String functions)
- DEA192CBCdecrypt and DEA192CBCencrypt (String functions)
- RC4decrypt and RC4encrypt (String functions)