diff options
Diffstat (limited to 'sys/netinet/ip_blf.c')
| -rw-r--r-- | sys/netinet/ip_blf.c | 62 |
1 files changed, 61 insertions, 1 deletions
diff --git a/sys/netinet/ip_blf.c b/sys/netinet/ip_blf.c index 71b2c98f35e..9f660f3717d 100644 --- a/sys/netinet/ip_blf.c +++ b/sys/netinet/ip_blf.c @@ -1,4 +1,4 @@ -/* $OpenBSD: ip_blf.c,v 1.4 1999/02/23 05:04:27 angelos Exp $ */ +/* $OpenBSD: ip_blf.c,v 1.5 1999/02/23 05:14:46 angelos Exp $ */ /* * Blowfish block cipher for OpenBSD * Copyright 1997 Niels Provos <provos@physnet.uni-hamburg.de> @@ -581,3 +581,63 @@ blf_dec(c, data, blocks) d += 2; } } + +#if __STDC__ +void +blf_ecb_encrypt(blf_ctx *c, u_int8_t *data, u_int32_t len) +#else +void +blf_ecb_encrypt(c, data, len) + blf_ctx *c; + u_int8_t *data; + u_int32_t len; +#endif +{ + u_int32_t l, r; + u_int32_t i; + + for (i = 0; i < len; i += 8) { + l = data[0] << 24 | data[1] << 16 | data[2] << 8 | data[3]; + r = data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7]; + Blowfish_encipher(c, &l, &r); + data[0] = l >> 24 & 0xff; + data[1] = l >> 16 & 0xff; + data[2] = l >> 8 & 0xff; + data[3] = l & 0xff; + data[4] = r >> 24 & 0xff; + data[5] = r >> 16 & 0xff; + data[6] = r >> 8 & 0xff; + data[7] = r & 0xff; + data += 8; + } +} + +#if __STDC__ +void +blf_ecb_decrypt(blf_ctx *c, u_int8_t *data, u_int32_t len) +#else +void +blf_ecb_decrypt(c, data, len) + blf_ctx *c; + u_int8_t *data; + u_int32_t len; +#endif +{ + u_int32_t l, r; + u_int32_t i; + + for (i = 0; i < len; i += 8) { + l = data[0] << 24 | data[1] << 16 | data[2] << 8 | data[3]; + r = data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7]; + Blowfish_decipher(c, &l, &r); + data[0] = l >> 24 & 0xff; + data[1] = l >> 16 & 0xff; + data[2] = l >> 8 & 0xff; + data[3] = l & 0xff; + data[4] = r >> 24 & 0xff; + data[5] = r >> 16 & 0xff; + data[6] = r >> 8 & 0xff; + data[7] = r & 0xff; + data += 8; + } +} |