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wolfssl-examples
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add example of no certs bundle and stream mode

pull/422/head
JacobBarthelmeh 2024-01-29 10:15:21 -07:00
parent 5a7c32742a
commit 81827df470
2 changed files with 52 additions and 13 deletions
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23
pkcs7/envelopedData-ktri.c
View File

@ -79,7 +79,8 @@ static int write_file_buffer(const char* fileName, byte* in, word32 inSz)
}
static int envelopedData_encrypt(byte* cert, word32 certSz, byte* key,
word32 keySz, byte* out, word32 outSz)
word32 keySz, byte* out, word32 outSz,
byte useStreamMode)
{
int ret;
PKCS7* pkcs7;
@ -93,6 +94,10 @@ static int envelopedData_encrypt(byte* cert, word32 certSz, byte* key,
pkcs7->contentOID = DATA;
pkcs7->encryptOID = AES256CBCb;
if (useStreamMode) {
wc_PKCS7_SetStreamMode(pkcs7, 1);
}
/* add recipient using RSA certificate (KTRI type) */
ret = wc_PKCS7_AddRecipient_KTRI(pkcs7, cert, certSz, 0);
if (ret < 0) {
@ -109,8 +114,8 @@ static int envelopedData_encrypt(byte* cert, word32 certSz, byte* key,
return -1;
} else {
printf("Successfully encoded EnvelopedData bundle (%s)\n",
encodedFileKTRI);
printf("Successfully encoded EnvelopedData bundle (%s), stream mode"
" %d\n", encodedFileKTRI, useStreamMode);
if (write_file_buffer(encodedFileKTRI, out, ret) != 0) {
printf("ERROR: error writing encoded to output file\n");
@ -177,7 +182,7 @@ int main(int argc, char** argv)
byte key[2048];
byte encrypted[1024];
byte decrypted[1024];
#ifdef DEBUG_WOLFSSL
wolfSSL_Debugging_ON();
#endif
@ -189,10 +194,18 @@ int main(int argc, char** argv)
return -1;
encryptedSz = envelopedData_encrypt(cert, certSz, key, keySz,
encrypted, sizeof(encrypted));
encrypted, sizeof(encrypted), 0);
if (encryptedSz < 0)
return -1;
#ifdef ASN_BER_TO_DER
/* recreate the bundle with BER encoding */
encryptedSz = envelopedData_encrypt(cert, certSz, key, keySz,
encrypted, sizeof(encrypted), 1);
if (encryptedSz < 0)
return -1;
#endif
#ifdef DEBUG_WOLFSSL
printf("EnvelopedData DER (%d byte):\n", encryptedSz);
WOLFSSL_BUFFER(encrypted, encryptedSz);

42
pkcs7/signedData.c
View File

@ -79,7 +79,8 @@ static int write_file_buffer(const char* fileName, byte* in, word32 inSz)
}
static int signedData_sign_noattrs(byte* cert, word32 certSz, byte* key,
word32 keySz, byte* out, word32 outSz)
word32 keySz, byte* out, word32 outSz,
byte streamMode, byte noCerts)
{
int ret;
PKCS7* pkcs7;
@ -118,6 +119,14 @@ static int signedData_sign_noattrs(byte* cert, word32 certSz, byte* key,
pkcs7->signedAttribs = NULL;
pkcs7->signedAttribsSz = 0;
if (streamMode) {
wc_PKCS7_SetStreamMode(pkcs7, 1);
}
if (noCerts) {
wc_PKCS7_SetNoCerts(pkcs7, 1);
}
/* encode signedData, returns size */
ret = wc_PKCS7_EncodeSignedData(pkcs7, out, outSz);
if (ret <= 0) {
@ -127,8 +136,8 @@ static int signedData_sign_noattrs(byte* cert, word32 certSz, byte* key,
return -1;
} else {
printf("Successfully encoded SignedData bundle (%s)\n",
encodedFileNoAttrs);
printf("Successfully encoded SignedData bundle (%s) %s\n",
encodedFileNoAttrs, (noCerts)? "No Certs Added":"");
#ifdef DEBUG_WOLFSSL
printf("Encoded DER (%d bytes):\n", ret);
@ -244,10 +253,14 @@ static int signedData_verify(byte* in, word32 inSz, byte* cert,
if (ret < 0 || (pkcs7->contentSz != sizeof(data)) ||
(XMEMCMP(pkcs7->content, data, pkcs7->contentSz) != 0)) {
printf("ERROR: Failed to verify SignedData bundle, ret = %d\n", ret);
wc_PKCS7_Free(pkcs7);
return -1;
if (ret == PKCS7_SIGNEEDS_CHECK) {
printf("WARNING: Parsed through bundle but no certificates found to"
" verify signature with\n");
}
else {
printf("ERROR: Failed to verify SignedData bundle, ret = %d\n",
ret);
}
} else {
printf("Successfully verified SignedData bundle.\n");
@ -287,7 +300,7 @@ int main(int argc, char** argv)
/* no attributes */
encryptedSz = signedData_sign_noattrs(cert, certSz, key, keySz,
encrypted, sizeof(encrypted));
encrypted, sizeof(encrypted), 0, 0);
if (encryptedSz < 0)
return -1;
@ -297,6 +310,19 @@ int main(int argc, char** argv)
if (decryptedSz < 0)
return -1;
/* no attributes, stream mode, and no certs */
encryptedSz = signedData_sign_noattrs(cert, certSz, key, keySz,
encrypted, sizeof(encrypted), 1, 1);
if (encryptedSz < 0)
return -1;
decryptedSz = signedData_verify(encrypted, encryptedSz,
cert, certSz, key, keySz,
decrypted, sizeof(decrypted));
/* should be error to warn that the signature needs checked */
if (decryptedSz != PKCS7_SIGNEEDS_CHECK)
return -1;
/* default attributes + messageType attribute */
encryptedSz = signedData_sign_attrs(cert, certSz, key, keySz,
encrypted, sizeof(encrypted));