| des_crypt.3 (50476) | des_crypt.3 (57686) |
|---|---|
| 1.\" @(#)des_crypt.3 2.1 88/08/11 4.0 RPCSRC; from 1.16 88/03/02 SMI; | 1.\" @(#)des_crypt.3 2.1 88/08/11 4.0 RPCSRC; from 1.16 88/03/02 SMI; |
| 2.\" $FreeBSD: head/lib/libc/rpc/des_crypt.3 50476 1999-08-28 00:22:10Z peter $ | 2.\" $FreeBSD: head/lib/libc/rpc/des_crypt.3 57686 2000-03-02 09:14:21Z sheldonh $ |
| 3.\" 4.TH DES_CRYPT 3 "6 October 1987" 5.SH NAME 6des_crypt, ecb_crypt, cbc_crypt, des_setparity \- fast DES encryption 7.SH SYNOPSIS 8.nf 9.B #include <des_crypt.h> 10.LP --- 38 unchanged lines hidden (view full) --- 49.B cbc_crypt(\|) 50encrypts in 51.SM CBC 52(Cipher Block Chaining) 53mode, which chains together 54successive blocks. 55.SM CBC 56mode protects against insertions, deletions and | 3.\" 4.TH DES_CRYPT 3 "6 October 1987" 5.SH NAME 6des_crypt, ecb_crypt, cbc_crypt, des_setparity \- fast DES encryption 7.SH SYNOPSIS 8.nf 9.B #include <des_crypt.h> 10.LP --- 38 unchanged lines hidden (view full) --- 49.B cbc_crypt(\|) 50encrypts in 51.SM CBC 52(Cipher Block Chaining) 53mode, which chains together 54successive blocks. 55.SM CBC 56mode protects against insertions, deletions and |
| 57substitutions of blocks. Also, regularities in the clear text will | 57substitutions of blocks. 58Also, regularities in the clear text will |
| 58not appear in the cipher text. 59.LP 60Here is how to use these routines. The first parameter, 61.IR key , 62is the 8-byte encryption key with parity. 63To set the key's parity, which for 64.SM DES 65is in the low bit of each byte, use 66.IR des_setparity . 67The second parameter, 68.IR data , | 59not appear in the cipher text. 60.LP 61Here is how to use these routines. The first parameter, 62.IR key , 63is the 8-byte encryption key with parity. 64To set the key's parity, which for 65.SM DES 66is in the low bit of each byte, use 67.IR des_setparity . 68The second parameter, 69.IR data , |
| 69contains the data to be encrypted or decrypted. The | 70contains the data to be encrypted or decrypted. 71The |
| 70third parameter, 71.IR datalen , 72is the length in bytes of 73.IR data , 74which must be a multiple of 8. The fourth parameter, 75.IR mode , 76is formed by 77.SM OR\s0'ing --- 51 unchanged lines hidden --- | 72third parameter, 73.IR datalen , 74is the length in bytes of 75.IR data , 76which must be a multiple of 8. The fourth parameter, 77.IR mode , 78is formed by 79.SM OR\s0'ing --- 51 unchanged lines hidden --- |