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Be more careful about destroying sensitive data after private key

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load/store/import operations.

[originally from svn r1673]
This commit is contained in:
Simon Tatham
2002-05-13 16:37:11 +00:00
parent 3b20d71a7e
commit 286f1f5b1f
3 changed files with 77 additions and 34 deletions
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4
sshdes.c
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@ -840,6 +840,7 @@ void des3_decrypt_pubkey(unsigned char *key, unsigned char *blk, int len)
des_key_setup(GET_32BIT_MSB_FIRST(key),
GET_32BIT_MSB_FIRST(key + 4), &ourkeys[2]);
des_3cbc_decrypt(blk, blk, len, ourkeys);
memset(ourkeys, 0, sizeof(ourkeys));
}
void des3_encrypt_pubkey(unsigned char *key, unsigned char *blk, int len)
@ -852,6 +853,7 @@ void des3_encrypt_pubkey(unsigned char *key, unsigned char *blk, int len)
des_key_setup(GET_32BIT_MSB_FIRST(key),
GET_32BIT_MSB_FIRST(key + 4), &ourkeys[2]);
des_3cbc_encrypt(blk, blk, len, ourkeys);
memset(ourkeys, 0, sizeof(ourkeys));
}
void des3_decrypt_pubkey_ossh(unsigned char *key, unsigned char *iv,
@ -867,6 +869,7 @@ void des3_decrypt_pubkey_ossh(unsigned char *key, unsigned char *iv,
ourkeys[0].div0 = GET_32BIT_MSB_FIRST(iv);
ourkeys[0].div1 = GET_32BIT_MSB_FIRST(iv+4);
des_cbc3_decrypt(blk, blk, len, ourkeys);
memset(ourkeys, 0, sizeof(ourkeys));
}
void des3_encrypt_pubkey_ossh(unsigned char *key, unsigned char *iv,
@ -882,6 +885,7 @@ void des3_encrypt_pubkey_ossh(unsigned char *key, unsigned char *iv,
ourkeys[0].eiv0 = GET_32BIT_MSB_FIRST(iv);
ourkeys[0].eiv1 = GET_32BIT_MSB_FIRST(iv+4);
des_cbc3_encrypt(blk, blk, len, ourkeys);
memset(ourkeys, 0, sizeof(ourkeys));
}
static const struct ssh2_cipher ssh_3des_ssh2 = {