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author | Kai Engert <kaie@kuix.de> | 2013-02-28 12:44:50 +0100 |
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committer | Kai Engert <kaie@kuix.de> | 2013-02-28 12:44:50 +0100 |
commit | 3ecd967b2a9e23403935e2bc932597f7e03e7f24 (patch) | |
tree | 4b0f054f0354c2dbe401f86d864c04c6034c1621 /lib/pkcs12/p12plcy.c | |
parent | f45b9ca74a609e0521d0cc4b7fc91603774992df (diff) | |
download | nss-hg-3ecd967b2a9e23403935e2bc932597f7e03e7f24.tar.gz |
Bug 845556, reorganize NSS directory layout, moving files, very large changeset! r=wtc
Diffstat (limited to 'lib/pkcs12/p12plcy.c')
-rw-r--r-- | lib/pkcs12/p12plcy.c | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/lib/pkcs12/p12plcy.c b/lib/pkcs12/p12plcy.c new file mode 100644 index 000000000..0a7608aaa --- /dev/null +++ b/lib/pkcs12/p12plcy.c @@ -0,0 +1,125 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + + +#include "p12plcy.h" +#include "secoid.h" +#include "secport.h" +#include "secpkcs5.h" + +#define PKCS12_NULL 0x0000 + +typedef struct pkcs12SuiteMapStr { + SECOidTag algTag; + unsigned int keyLengthBits; /* in bits */ + unsigned long suite; + PRBool allowed; + PRBool preferred; +} pkcs12SuiteMap; + +static pkcs12SuiteMap pkcs12SuiteMaps[] = { + { SEC_OID_RC4, 40, PKCS12_RC4_40, PR_FALSE, PR_FALSE}, + { SEC_OID_RC4, 128, PKCS12_RC4_128, PR_FALSE, PR_FALSE}, + { SEC_OID_RC2_CBC, 40, PKCS12_RC2_CBC_40, PR_FALSE, PR_TRUE}, + { SEC_OID_RC2_CBC, 128, PKCS12_RC2_CBC_128, PR_FALSE, PR_FALSE}, + { SEC_OID_DES_CBC, 64, PKCS12_DES_56, PR_FALSE, PR_FALSE}, + { SEC_OID_DES_EDE3_CBC, 192, PKCS12_DES_EDE3_168, PR_FALSE, PR_FALSE}, + { SEC_OID_UNKNOWN, 0, PKCS12_NULL, PR_FALSE, PR_FALSE}, + { SEC_OID_UNKNOWN, 0, 0L, PR_FALSE, PR_FALSE} +}; + +/* determine if algid is an algorithm which is allowed */ +PRBool +SEC_PKCS12DecryptionAllowed(SECAlgorithmID *algid) +{ + unsigned int keyLengthBits; + SECOidTag algId; + int i; + + algId = SEC_PKCS5GetCryptoAlgorithm(algid); + if(algId == SEC_OID_UNKNOWN) { + return PR_FALSE; + } + + keyLengthBits = (unsigned int)(SEC_PKCS5GetKeyLength(algid) * 8); + + i = 0; + while(pkcs12SuiteMaps[i].algTag != SEC_OID_UNKNOWN) { + if((pkcs12SuiteMaps[i].algTag == algId) && + (pkcs12SuiteMaps[i].keyLengthBits == keyLengthBits)) { + + return pkcs12SuiteMaps[i].allowed; + } + i++; + } + + return PR_FALSE; +} + +/* is any encryption allowed? */ +PRBool +SEC_PKCS12IsEncryptionAllowed(void) +{ + int i; + + i = 0; + while(pkcs12SuiteMaps[i].algTag != SEC_OID_UNKNOWN) { + if(pkcs12SuiteMaps[i].allowed == PR_TRUE) { + return PR_TRUE; + } + i++; + } + + return PR_FALSE; +} + + +SECStatus +SEC_PKCS12EnableCipher(long which, int on) +{ + int i; + + i = 0; + while(pkcs12SuiteMaps[i].suite != 0L) { + if(pkcs12SuiteMaps[i].suite == (unsigned long)which) { + if(on) { + pkcs12SuiteMaps[i].allowed = PR_TRUE; + } else { + pkcs12SuiteMaps[i].allowed = PR_FALSE; + } + return SECSuccess; + } + i++; + } + + return SECFailure; +} + +SECStatus +SEC_PKCS12SetPreferredCipher(long which, int on) +{ + int i; + PRBool turnedOff = PR_FALSE; + PRBool turnedOn = PR_FALSE; + + i = 0; + while(pkcs12SuiteMaps[i].suite != 0L) { + if(pkcs12SuiteMaps[i].preferred == PR_TRUE) { + pkcs12SuiteMaps[i].preferred = PR_FALSE; + turnedOff = PR_TRUE; + } + if(pkcs12SuiteMaps[i].suite == (unsigned long)which) { + pkcs12SuiteMaps[i].preferred = PR_TRUE; + turnedOn = PR_TRUE; + } + i++; + } + + if((turnedOn) && (turnedOff)) { + return SECSuccess; + } + + return SECFailure; +} + |