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added some debug messages to dda

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This commit is contained in:
merlokk 2017-12-07 00:18:57 +02:00
commit 2fd87dd426
1 changed files with 12 additions and 5 deletions
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17
client/emv/emv_pki.c
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@ -65,6 +65,11 @@ static unsigned char *emv_pki_decode_message(const struct emv_pk *enc_pk,
data = crypto_pk_encrypt(kcp, cert_tlv->value, cert_tlv->len, &data_len); data = crypto_pk_encrypt(kcp, cert_tlv->value, cert_tlv->len, &data_len);
crypto_pk_close(kcp); crypto_pk_close(kcp);
/* if (true){
printf("Recovered data:\n");
dump_buffer(data, data_len, stdout, 0);
}*/
if (data[data_len-1] != 0xbc || data[0] != 0x6a || data[1] != msgtype) { if (data[data_len-1] != 0xbc || data[0] != 0x6a || data[1] != msgtype) {
printf("ERROR: Certificate format\n"); printf("ERROR: Certificate format\n");
free(data); free(data);
@ -101,6 +106,8 @@ static unsigned char *emv_pki_decode_message(const struct emv_pk *enc_pk,
if (memcmp(data + data_len - 1 - hash_len, crypto_hash_read(ch), hash_len)) { if (memcmp(data + data_len - 1 - hash_len, crypto_hash_read(ch), hash_len)) {
printf("ERROR: Calculated wrong hash\n"); printf("ERROR: Calculated wrong hash\n");
printf("decoded: %s\n",sprint_hex(data + data_len - 1 - hash_len, hash_len));
printf("calculated: %s\n",sprint_hex(crypto_hash_read(ch), hash_len));
crypto_hash_close(ch); crypto_hash_close(ch);
free(data); free(data);
return NULL; return NULL;
@ -341,6 +348,11 @@ struct tlvdb *emv_pki_recover_idn_ex(const struct emv_pk *enc_pk, const struct t
return NULL; return NULL;
} }
if (showData){
printf("Recovered data:\n");
dump_buffer(data, data_len, stdout, 0);
}
size_t idn_len = data[4]; size_t idn_len = data[4];
if (idn_len > data[3] - 1) { if (idn_len > data[3] - 1) {
free(data); free(data);
@ -350,11 +362,6 @@ struct tlvdb *emv_pki_recover_idn_ex(const struct emv_pk *enc_pk, const struct t
// 9f4c ICC Dynamic Number // 9f4c ICC Dynamic Number
struct tlvdb *idn_db = tlvdb_fixed(0x9f4c, idn_len, data + 5); struct tlvdb *idn_db = tlvdb_fixed(0x9f4c, idn_len, data + 5);
if (showData){
printf("Recovered data:\n");
dump_buffer(data, data_len, stdout, 0);
}
free(data); free(data);
return idn_db; return idn_db;