From 67326634496ef21b4acbf4cef2f05040d34aef9b Mon Sep 17 00:00:00 2001 From: marha Date: Tue, 10 Apr 2012 11:41:26 +0200 Subject: Update to openssl-1.0.1 --- openssl/crypto/cms/cms_smime.c | 61 +++++++++++++++++++++++++++++++++++++++--- 1 file changed, 57 insertions(+), 4 deletions(-) (limited to 'openssl/crypto/cms/cms_smime.c') diff --git a/openssl/crypto/cms/cms_smime.c b/openssl/crypto/cms/cms_smime.c index 4a799eb89..8c56e3a85 100644 --- a/openssl/crypto/cms/cms_smime.c +++ b/openssl/crypto/cms/cms_smime.c @@ -611,7 +611,10 @@ int CMS_decrypt_set1_pkey(CMS_ContentInfo *cms, EVP_PKEY *pk, X509 *cert) STACK_OF(CMS_RecipientInfo) *ris; CMS_RecipientInfo *ri; int i, r; + int debug = 0; ris = CMS_get0_RecipientInfos(cms); + if (ris) + debug = cms->d.envelopedData->encryptedContentInfo->debug; for (i = 0; i < sk_CMS_RecipientInfo_num(ris); i++) { ri = sk_CMS_RecipientInfo_value(ris, i); @@ -625,17 +628,38 @@ int CMS_decrypt_set1_pkey(CMS_ContentInfo *cms, EVP_PKEY *pk, X509 *cert) CMS_RecipientInfo_set0_pkey(ri, pk); r = CMS_RecipientInfo_decrypt(cms, ri); CMS_RecipientInfo_set0_pkey(ri, NULL); - if (r > 0) - return 1; if (cert) { + /* If not debugging clear any error and + * return success to avoid leaking of + * information useful to MMA + */ + if (!debug) + { + ERR_clear_error(); + return 1; + } + if (r > 0) + return 1; CMSerr(CMS_F_CMS_DECRYPT_SET1_PKEY, CMS_R_DECRYPT_ERROR); return 0; } - ERR_clear_error(); + /* If no cert and not debugging don't leave loop + * after first successful decrypt. Always attempt + * to decrypt all recipients to avoid leaking timing + * of a successful decrypt. + */ + else if (r > 0 && debug) + return 1; } } + /* If no cert and not debugging always return success */ + if (!cert && !debug) + { + ERR_clear_error(); + return 1; + } CMSerr(CMS_F_CMS_DECRYPT_SET1_PKEY, CMS_R_NO_MATCHING_RECIPIENT); return 0; @@ -680,6 +704,30 @@ int CMS_decrypt_set1_key(CMS_ContentInfo *cms, return 0; } + +int CMS_decrypt_set1_password(CMS_ContentInfo *cms, + unsigned char *pass, ossl_ssize_t passlen) + { + STACK_OF(CMS_RecipientInfo) *ris; + CMS_RecipientInfo *ri; + int i, r; + ris = CMS_get0_RecipientInfos(cms); + for (i = 0; i < sk_CMS_RecipientInfo_num(ris); i++) + { + ri = sk_CMS_RecipientInfo_value(ris, i); + if (CMS_RecipientInfo_type(ri) != CMS_RECIPINFO_PASS) + continue; + CMS_RecipientInfo_set0_password(ri, pass, passlen); + r = CMS_RecipientInfo_decrypt(cms, ri); + CMS_RecipientInfo_set0_password(ri, NULL, 0); + if (r > 0) + return 1; + } + + CMSerr(CMS_F_CMS_DECRYPT_SET1_PASSWORD, CMS_R_NO_MATCHING_RECIPIENT); + return 0; + + } int CMS_decrypt(CMS_ContentInfo *cms, EVP_PKEY *pk, X509 *cert, BIO *dcont, BIO *out, @@ -694,9 +742,14 @@ int CMS_decrypt(CMS_ContentInfo *cms, EVP_PKEY *pk, X509 *cert, } if (!dcont && !check_content(cms)) return 0; + if (flags & CMS_DEBUG_DECRYPT) + cms->d.envelopedData->encryptedContentInfo->debug = 1; + else + cms->d.envelopedData->encryptedContentInfo->debug = 0; + if (!pk && !cert && !dcont && !out) + return 1; if (pk && !CMS_decrypt_set1_pkey(cms, pk, cert)) return 0; - cont = CMS_dataInit(cms, dcont); if (!cont) return 0; -- cgit v1.2.3