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Download OpenVMS System Services Reference Manual: GETUTC–Z
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System Service Descriptions $HASH_PASSWORD hash OpenVMS usage: type: access: mechanism: quadword_unsigned quadword (unsigned) write only by reference Output hash value representing the encrypted password. The hash argument is the address of an unsigned quadword to which $HASH_PASSWORD writes the output of the hash. If you use the UAI$C_AD_II algorithm, the second longword of the hash is always set to 0. Description The Hash Password service applies the hash algorithm you select to an ASCII password string and returns a quadword hash value that represents the encrypted password. Other OpenVMS password services allow spaces, tabs, and other blank characters from the user, but they remove those spaces before passing the string to $HASH_ PASSWORD. Before calling $HASH_PASSWORD, all white space must be removed from the password string to ensure proper comparison with passwords created by other services. Required Access or Privileges None Required Quota None Related Services $GETUAI, $SETUAI. Use $GETUAI to get the values for the salt and alg arguments. Use $SETUAI to store the resulting hash using the item codes UAI$_PWD and UAI$_PWD2. For more information, see the appendix on implementing site-specific security policies in the OpenVMS Programming Concepts Manual. Condition Values Returned SS$_NORMAL SS$_ACCVIO SS$_BADPARAM SYS2–40 The service completed successfully. The input or output buffer descriptors cannot be read or written to by the caller. The specified hash algorithm is unknown or invalid.
