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RFC5753 compliance.

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RFC5753 requires that we omit parameters for AES key wrap and set them
to NULL for 3DES wrap. OpenSSL decrypt uses the received algorithm
parameters so can transparently handle either form.

Reviewed-by: Andy Polyakov <appro@openssl.org>
This commit is contained in:
Dr. Stephen Henson 2015-10-12 21:14:04 +01:00
parent 6220acf887
commit 4ec36aff2a
1 changed files with 2 additions and 1 deletions
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3
crypto/evp/evp_lib.c
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@ -70,7 +70,8 @@ int EVP_CIPHER_param_to_asn1(EVP_CIPHER_CTX *c, ASN1_TYPE *type)
else if (c->cipher->flags & EVP_CIPH_FLAG_DEFAULT_ASN1) {
switch (EVP_CIPHER_CTX_mode(c)) {
case EVP_CIPH_WRAP_MODE:
ASN1_TYPE_set(type, V_ASN1_NULL, NULL);
if (EVP_CIPHER_CTX_nid(c) == NID_id_smime_alg_CMS3DESwrap)
ASN1_TYPE_set(type, V_ASN1_NULL, NULL);
ret = 1;
break;