Name
xencrypt, xdecrypt, passwd2des - RFS password encryptionLibrary
Standard C library ( libc ", " -lc )Synopsis
"#include <rpc/des_crypt.h>" void passwd2des(char " *passwd ", char *" key ");
int xencrypt(char *" secret ", char *" passwd ");
int xdecrypt(char *" secret ", char *" passwd ");
Description
WARNING :Do not use these functions in new code. They do not achieve any type of acceptable cryptographic security guarantees.The function passwd2des() takes a character string passwd of arbitrary length and fills a character array key of length 8. The array key is suitable for use as DES key. It has odd parity set in bit 0 of each byte. Both other functions described here use this function to turn their argument passwd into a DES key.
The xencrypt() function takes the ASCII character string secret given in hex, which must have a length that is a multiple of 16, encrypts it using the DES key derived from passwd by passwd2des() and outputs the result again in secret as a hex string of the same length.
The xdecrypt() function performs the converse operation.
Return Value
The functions xencrypt() and xdecrypt() return 1 on success and 0 on error.Attributes
For an explanation of the terms used in this section, see attributes(7).| Interface | Attribute | Value |
| T} | Thread safety | MT-Safe |
Versions
These functions are available since glibc 2.1.Bugs
The prototypes are missing from the abovementioned include file.See Also
- cbc_crypt(3)