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Added a framework for importing foreign key formats, and implemented

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importing of OpenSSH SSH2 private key files (both encrypted and
unencrypted). Seems to work fine.

[originally from svn r1668]
This commit is contained in:
Simon Tatham
2002-05-11 16:45:29 +00:00
parent 07d48d8b27
commit 9a8c58a64b
7 changed files with 624 additions and 20 deletions
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30
sshdes.c
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@ -854,6 +854,36 @@ void des3_encrypt_pubkey(unsigned char *key, unsigned char *blk, int len)
des_3cbc_encrypt(blk, blk, len, ourkeys);
}
void des3_decrypt_pubkey_ossh(unsigned char *key, unsigned char *iv,
unsigned char *blk, int len)
{
DESContext ourkeys[3];
des_key_setup(GET_32BIT_MSB_FIRST(key),
GET_32BIT_MSB_FIRST(key + 4), &ourkeys[0]);
des_key_setup(GET_32BIT_MSB_FIRST(key + 8),
GET_32BIT_MSB_FIRST(key + 12), &ourkeys[1]);
des_key_setup(GET_32BIT_MSB_FIRST(key + 16),
GET_32BIT_MSB_FIRST(key + 20), &ourkeys[2]);
ourkeys[0].div0 = GET_32BIT_MSB_FIRST(iv);
ourkeys[0].div1 = GET_32BIT_MSB_FIRST(iv+4);
des_cbc3_decrypt(blk, blk, len, ourkeys);
}
void des3_encrypt_pubkey_ossh(unsigned char *key, unsigned char *iv,
unsigned char *blk, int len)
{
DESContext ourkeys[3];
des_key_setup(GET_32BIT_MSB_FIRST(key),
GET_32BIT_MSB_FIRST(key + 4), &ourkeys[0]);
des_key_setup(GET_32BIT_MSB_FIRST(key + 8),
GET_32BIT_MSB_FIRST(key + 12), &ourkeys[1]);
des_key_setup(GET_32BIT_MSB_FIRST(key + 16),
GET_32BIT_MSB_FIRST(key + 20), &ourkeys[2]);
ourkeys[0].eiv0 = GET_32BIT_MSB_FIRST(iv);
ourkeys[0].eiv1 = GET_32BIT_MSB_FIRST(iv+4);
des_cbc3_encrypt(blk, blk, len, ourkeys);
}
static const struct ssh2_cipher ssh_3des_ssh2 = {
des3_csiv, des3_cskey,
des3_sciv, des3_sckey,