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PKCS#1: Debug dump invalid Signature EB

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Signed-off-by: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2020-04-05 20:13:26 +03:00
parent f8d8b7d92d
commit 24a6bca704
1 changed files with 4 additions and 0 deletions
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4
src/tls/pkcs1.c
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@ -157,6 +157,7 @@ int pkcs1_decrypt_public_key(struct crypto_rsa_key *key,
plain[0] != 0x00 || plain[1] != 0x01) {
wpa_printf(MSG_INFO, "LibTomCrypt: Invalid signature EB "
"structure");
wpa_hexdump_key(MSG_DEBUG, "Signature EB", plain, len);
return -1;
}
@ -165,6 +166,7 @@ int pkcs1_decrypt_public_key(struct crypto_rsa_key *key,
if (plain[2] != 0xff) {
wpa_printf(MSG_INFO, "LibTomCrypt: Invalid signature "
"PS (BT=01)");
wpa_hexdump_key(MSG_DEBUG, "Signature EB", plain, len);
return -1;
}
while (pos < plain + len && *pos == 0xff)
@ -174,12 +176,14 @@ int pkcs1_decrypt_public_key(struct crypto_rsa_key *key,
/* PKCS #1 v1.5, 8.1: At least eight octets long PS */
wpa_printf(MSG_INFO, "LibTomCrypt: Too short signature "
"padding");
wpa_hexdump_key(MSG_DEBUG, "Signature EB", plain, len);
return -1;
}
if (pos + 16 /* min hash len */ >= plain + len || *pos != 0x00) {
wpa_printf(MSG_INFO, "LibTomCrypt: Invalid signature EB "
"structure (2)");
wpa_hexdump_key(MSG_DEBUG, "Signature EB", plain, len);
return -1;
}
pos++;