Mercurial > dropbear
view libtomcrypt/src/pk/katja/katja_import.c @ 1629:258b57b208ae
Fix for issue successfull login of disabled user (#78)
This commit introduces fix for scenario:
1. Root login disabled on dropbear
2. PAM authentication model enabled
While login as root user, after prompt for password
user is being notified about login failrue, but
after second attempt of prompt for password within
same session, login becames succesfull.
Signed-off-by: Pawel Rapkiewicz <[email protected]>
author | vincentto13 <33652988+vincentto13@users.noreply.github.com> |
---|---|
date | Wed, 20 Mar 2019 15:03:40 +0100 |
parents | 6dba84798cd5 |
children |
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/* LibTomCrypt, modular cryptographic library -- Tom St Denis * * LibTomCrypt is a library that provides various cryptographic * algorithms in a highly modular and flexible manner. * * The library is free for all purposes without any express * guarantee it works. */ #include "tomcrypt.h" /** @file katja_import.c Import a PKCS-style Katja key, Tom St Denis */ #ifdef LTC_MKAT /** Import an KatjaPublicKey or KatjaPrivateKey [two-prime only, only support >= 1024-bit keys, defined in PKCS #1 v2.1] @param in The packet to import from @param inlen It's length (octets) @param key [out] Destination for newly imported key @return CRYPT_OK if successful, upon error allocated memory is freed */ int katja_import(const unsigned char *in, unsigned long inlen, katja_key *key) { int err; void *zero; LTC_ARGCHK(in != NULL); LTC_ARGCHK(key != NULL); LTC_ARGCHK(ltc_mp.name != NULL); /* init key */ if ((err = mp_init_multi(&zero, &key->d, &key->N, &key->dQ, &key->dP, &key->qP, &key->p, &key->q, &key->pq, NULL)) != CRYPT_OK) { return err; } if ((err = der_decode_sequence_multi(in, inlen, LTC_ASN1_INTEGER, 1UL, key->N, LTC_ASN1_EOL, 0UL, NULL)) != CRYPT_OK) { goto LBL_ERR; } if (mp_cmp_d(key->N, 0) == LTC_MP_EQ) { /* it's a private key */ if ((err = der_decode_sequence_multi(in, inlen, LTC_ASN1_INTEGER, 1UL, zero, LTC_ASN1_INTEGER, 1UL, key->N, LTC_ASN1_INTEGER, 1UL, key->d, LTC_ASN1_INTEGER, 1UL, key->p, LTC_ASN1_INTEGER, 1UL, key->q, LTC_ASN1_INTEGER, 1UL, key->dP, LTC_ASN1_INTEGER, 1UL, key->dQ, LTC_ASN1_INTEGER, 1UL, key->qP, LTC_ASN1_INTEGER, 1UL, key->pq, LTC_ASN1_EOL, 0UL, NULL)) != CRYPT_OK) { goto LBL_ERR; } key->type = PK_PRIVATE; } else { /* public we have N */ key->type = PK_PUBLIC; } mp_clear(zero); return CRYPT_OK; LBL_ERR: mp_clear_multi(zero, key->d, key->N, key->dQ, key->dP, key->qP, key->p, key->q, key->pq, NULL); return err; } #endif /* LTC_MRSA */ /* ref: $Format:%D$ */ /* git commit: $Format:%H$ */ /* commit time: $Format:%ai$ */