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Diffstat (limited to 'security/nss/lib/cryptohi/cryptohi.h')
| -rw-r--r-- | security/nss/lib/cryptohi/cryptohi.h | 364 |
1 files changed, 364 insertions, 0 deletions
diff --git a/security/nss/lib/cryptohi/cryptohi.h b/security/nss/lib/cryptohi/cryptohi.h new file mode 100644 index 000000000..f658daa9e --- /dev/null +++ b/security/nss/lib/cryptohi/cryptohi.h @@ -0,0 +1,364 @@ +/* + * cryptohi.h - public prototypes for the crypto library + * + * 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/. */ + +#ifndef _CRYPTOHI_H_ +#define _CRYPTOHI_H_ + +#include "blapit.h" + +#include "seccomon.h" +#include "secoidt.h" +#include "secdert.h" +#include "cryptoht.h" +#include "keyt.h" +#include "certt.h" + +SEC_BEGIN_PROTOS + +/****************************************/ +/* +** DER encode/decode (EC)DSA signatures +*/ + +/* ANSI X9.57 defines DSA signatures as DER encoded data. Our DSA1 code (and + * most of the rest of the world) just generates 40 bytes of raw data. These + * functions convert between formats. + */ +extern SECStatus DSAU_EncodeDerSig(SECItem *dest, SECItem *src); +extern SECItem *DSAU_DecodeDerSig(const SECItem *item); + +/* + * Unlike DSA1, raw DSA2 and ECDSA signatures do not have a fixed length. + * Rather they contain two integers r and s whose length depends + * on the size of q or the EC key used for signing. + * + * We can reuse the DSAU_EncodeDerSig interface to DER encode + * raw ECDSA signature keeping in mind that the length of r + * is the same as that of s and exactly half of src->len. + * + * For decoding, we need to pass the length of the desired + * raw signature (twice the key size) explicitly. + */ +extern SECStatus DSAU_EncodeDerSigWithLen(SECItem *dest, SECItem *src, + unsigned int len); +extern SECItem *DSAU_DecodeDerSigToLen(const SECItem *item, unsigned int len); + +/****************************************/ +/* +** Signature creation operations +*/ + +/* +** Create a new signature context used for signing a data stream. +** "alg" the signature algorithm to use (e.g. SEC_OID_PKCS1_MD5_WITH_RSA_ENCRYPTION) +** "privKey" the private key to use +*/ +extern SGNContext *SGN_NewContext(SECOidTag alg, SECKEYPrivateKey *privKey); + +/* +** Destroy a signature-context object +** "cx" the object +** "freeit" if PR_TRUE then free the object as well as its sub-objects +*/ +extern void SGN_DestroyContext(SGNContext *cx, PRBool freeit); + +/* +** Reset the signing context "cx" to its initial state, preparing it for +** another stream of data. +*/ +extern SECStatus SGN_Begin(SGNContext *cx); + +/* +** Update the signing context with more data to sign. +** "cx" the context +** "input" the input data to sign +** "inputLen" the length of the input data +*/ +extern SECStatus SGN_Update(SGNContext *cx, const unsigned char *input, + unsigned int inputLen); + +/* +** Finish the signature process. Use either k0 or k1 to sign the data +** stream that was input using SGN_Update. The resulting signature is +** formatted using PKCS#1 and then encrypted using RSA private or public +** encryption. +** "cx" the context +** "result" the final signature data (memory is allocated) +*/ +extern SECStatus SGN_End(SGNContext *cx, SECItem *result); + +/* +** Sign a single block of data using private key encryption and given +** signature/hash algorithm. +** "result" the final signature data (memory is allocated) +** "buf" the input data to sign +** "len" the amount of data to sign +** "pk" the private key to encrypt with +** "algid" the signature/hash algorithm to sign with +** (must be compatible with the key type). +*/ +extern SECStatus SEC_SignData(SECItem *result, + const unsigned char *buf, int len, + SECKEYPrivateKey *pk, SECOidTag algid); + +/* +** Sign a pre-digested block of data using private key encryption, encoding +** The given signature/hash algorithm. +** "result" the final signature data (memory is allocated) +** "digest" the digest to sign +** "privKey" the private key to encrypt with +** "algtag" The algorithm tag to encode (need for RSA only) +*/ +extern SECStatus SGN_Digest(SECKEYPrivateKey *privKey, + SECOidTag algtag, SECItem *result, SECItem *digest); + +/* +** DER sign a single block of data using private key encryption and the +** MD5 hashing algorithm. This routine first computes a digital signature +** using SEC_SignData, then wraps it with an CERTSignedData and then der +** encodes the result. +** "arena" is the memory arena to use to allocate data from +** "result" the final der encoded data (memory is allocated) +** "buf" the input data to sign +** "len" the amount of data to sign +** "pk" the private key to encrypt with +*/ +extern SECStatus SEC_DerSignData(PLArenaPool *arena, SECItem *result, + const unsigned char *buf, int len, + SECKEYPrivateKey *pk, SECOidTag algid); + +/* +** Destroy a signed-data object. +** "sd" the object +** "freeit" if PR_TRUE then free the object as well as its sub-objects +*/ +extern void SEC_DestroySignedData(CERTSignedData *sd, PRBool freeit); + +/* +** Get the signature algorithm tag number for the given key type and hash +** algorithm tag. Returns SEC_OID_UNKNOWN if key type and hash algorithm +** do not match or are not supported. +*/ +extern SECOidTag SEC_GetSignatureAlgorithmOidTag(KeyType keyType, + SECOidTag hashAlgTag); + +/****************************************/ +/* +** Signature verification operations +*/ + +/* +** Create a signature verification context. This version is deprecated, +** This function is deprecated. Use VFY_CreateContextDirect or +** VFY_CreateContextWithAlgorithmID instead. +** "key" the public key to verify with +** "sig" the encrypted signature data if sig is NULL then +** VFY_EndWithSignature must be called with the correct signature at +** the end of the processing. +** "sigAlg" specifies the signing algorithm to use (including the +** hash algorthim). This must match the key type. +** "wincx" void pointer to the window context +*/ +extern VFYContext *VFY_CreateContext(SECKEYPublicKey *key, SECItem *sig, + SECOidTag sigAlg, void *wincx); +/* +** Create a signature verification context. +** "key" the public key to verify with +** "sig" the encrypted signature data if sig is NULL then +** VFY_EndWithSignature must be called with the correct signature at +** the end of the processing. +** "pubkAlg" specifies the cryptographic signing algorithm to use (the +** raw algorithm without any hash specified. This must match the key +** type. +** "hashAlg" specifies the hashing algorithm used. If the key is an +** RSA key, and sig is not NULL, then hashAlg can be SEC_OID_UNKNOWN. +** the hash is selected from data in the sig. +** "hash" optional pointer to return the actual hash algorithm used. +** in practice this should always match the passed in hashAlg (the +** exception is the case where hashAlg is SEC_OID_UNKNOWN above). +** If this value is NULL no, hash oid is returned. +** "wincx" void pointer to the window context +*/ +extern VFYContext *VFY_CreateContextDirect(const SECKEYPublicKey *key, + const SECItem *sig, + SECOidTag pubkAlg, + SECOidTag hashAlg, + SECOidTag *hash, void *wincx); +/* +** Create a signature verification context from a algorithm ID. +** "key" the public key to verify with +** "sig" the encrypted signature data if sig is NULL then +** VFY_EndWithSignature must be called with the correct signature at +** the end of the processing. +** "algid" specifies the signing algorithm and parameters to use. +** This must match the key type. +** "hash" optional pointer to return the oid of the actual hash used in +** the signature. If this value is NULL no, hash oid is returned. +** "wincx" void pointer to the window context +*/ +extern VFYContext *VFY_CreateContextWithAlgorithmID(const SECKEYPublicKey *key, + const SECItem *sig, + const SECAlgorithmID *algid, + SECOidTag *hash, + void *wincx); + +/* +** Destroy a verification-context object. +** "cx" the context to destroy +** "freeit" if PR_TRUE then free the object as well as its sub-objects +*/ +extern void VFY_DestroyContext(VFYContext *cx, PRBool freeit); + +extern SECStatus VFY_Begin(VFYContext *cx); + +/* +** Update a verification context with more input data. The input data +** is fed to a secure hash function (depending on what was in the +** encrypted signature data). +** "cx" the context +** "input" the input data +** "inputLen" the amount of input data +*/ +extern SECStatus VFY_Update(VFYContext *cx, const unsigned char *input, + unsigned int inputLen); + +/* +** Finish the verification process. The return value is a status which +** indicates success or failure. On success, the SECSuccess value is +** returned. Otherwise, SECFailure is returned and the error code found +** using PORT_GetError() indicates what failure occurred. +** "cx" the context +*/ +extern SECStatus VFY_End(VFYContext *cx); + +/* +** Finish the verification process. The return value is a status which +** indicates success or failure. On success, the SECSuccess value is +** returned. Otherwise, SECFailure is returned and the error code found +** using PORT_GetError() indicates what failure occurred. If signature is +** supplied the verification uses this signature to verify, otherwise the +** signature passed in VFY_CreateContext() is used. +** VFY_EndWithSignature(cx,NULL); is identical to VFY_End(cx);. +** "cx" the context +** "sig" the encrypted signature data +*/ +extern SECStatus VFY_EndWithSignature(VFYContext *cx, SECItem *sig); + +/* +** Verify the signature on a block of data for which we already have +** the digest. The signature data is an RSA private key encrypted +** block of data formatted according to PKCS#1. +** This function is deprecated. Use VFY_VerifyDigestDirect or +** VFY_VerifyDigestWithAlgorithmID instead. +** "dig" the digest +** "key" the public key to check the signature with +** "sig" the encrypted signature data +** "sigAlg" specifies the signing algorithm to use. This must match +** the key type. +** "wincx" void pointer to the window context +**/ +extern SECStatus VFY_VerifyDigest(SECItem *dig, SECKEYPublicKey *key, + SECItem *sig, SECOidTag sigAlg, void *wincx); +/* +** Verify the signature on a block of data for which we already have +** the digest. The signature data is an RSA private key encrypted +** block of data formatted according to PKCS#1. +** "dig" the digest +** "key" the public key to check the signature with +** "sig" the encrypted signature data +** "pubkAlg" specifies the cryptographic signing algorithm to use (the +** raw algorithm without any hash specified. This must match the key +** type. +** "hashAlg" specifies the hashing algorithm used. +** "wincx" void pointer to the window context +**/ +extern SECStatus VFY_VerifyDigestDirect(const SECItem *dig, + const SECKEYPublicKey *key, + const SECItem *sig, SECOidTag pubkAlg, + SECOidTag hashAlg, void *wincx); +/* +** Verify the signature on a block of data for which we already have +** the digest. The signature data is an RSA private key encrypted +** block of data formatted according to PKCS#1. +** "key" the public key to verify with +** "sig" the encrypted signature data if sig is NULL then +** VFY_EndWithSignature must be called with the correct signature at +** the end of the processing. +** "algid" specifies the signing algorithm and parameters to use. +** This must match the key type. +** "hash" oid of the actual hash used to create digest. If this value is +** not set to SEC_OID_UNKNOWN, it must match the hash of the signature. +** "wincx" void pointer to the window context +*/ +extern SECStatus VFY_VerifyDigestWithAlgorithmID(const SECItem *dig, + const SECKEYPublicKey *key, const SECItem *sig, + const SECAlgorithmID *algid, SECOidTag hash, + void *wincx); + +/* +** Verify the signature on a block of data. The signature data is an RSA +** private key encrypted block of data formatted according to PKCS#1. +** This function is deprecated. Use VFY_VerifyDataDirect or +** VFY_VerifyDataWithAlgorithmID instead. +** "buf" the input data +** "len" the length of the input data +** "key" the public key to check the signature with +** "sig" the encrypted signature data +** "sigAlg" specifies the signing algorithm to use. This must match +** the key type. +** "wincx" void pointer to the window context +*/ +extern SECStatus VFY_VerifyData(const unsigned char *buf, int len, + const SECKEYPublicKey *key, const SECItem *sig, + SECOidTag sigAlg, void *wincx); +/* +** Verify the signature on a block of data. The signature data is an RSA +** private key encrypted block of data formatted according to PKCS#1. +** "buf" the input data +** "len" the length of the input data +** "key" the public key to check the signature with +** "sig" the encrypted signature data +** "pubkAlg" specifies the cryptographic signing algorithm to use (the +** raw algorithm without any hash specified. This must match the key +** type. +** "hashAlg" specifies the hashing algorithm used. If the key is an +** RSA key, and sig is not NULL, then hashAlg can be SEC_OID_UNKNOWN. +** the hash is selected from data in the sig. +** "hash" optional pointer to return the actual hash algorithm used. +** in practice this should always match the passed in hashAlg (the +** exception is the case where hashAlg is SEC_OID_UNKNOWN above). +** If this value is NULL no, hash oid is returned. +** "wincx" void pointer to the window context +*/ +extern SECStatus VFY_VerifyDataDirect(const unsigned char *buf, int len, + const SECKEYPublicKey *key, + const SECItem *sig, + SECOidTag pubkAlg, SECOidTag hashAlg, + SECOidTag *hash, void *wincx); + +/* +** Verify the signature on a block of data. The signature data is an RSA +** private key encrypted block of data formatted according to PKCS#1. +** "buf" the input data +** "len" the length of the input data +** "key" the public key to check the signature with +** "sig" the encrypted signature data +** "algid" specifies the signing algorithm and parameters to use. +** This must match the key type. +** "hash" optional pointer to return the oid of the actual hash used in +** the signature. If this value is NULL no, hash oid is returned. +** "wincx" void pointer to the window context +*/ +extern SECStatus VFY_VerifyDataWithAlgorithmID(const unsigned char *buf, + int len, const SECKEYPublicKey *key, + const SECItem *sig, + const SECAlgorithmID *algid, SECOidTag *hash, + void *wincx); + +SEC_END_PROTOS + +#endif /* _CRYPTOHI_H_ */ |