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rsa.c File Reference
RSA public-key cryptography standard. More...
Go to the source code of this file.
Functions | |
| void | rsaInitPublicKey (RsaPublicKey *key) |
| Initialize a RSA public key. | |
| void | rsaFreePublicKey (RsaPublicKey *key) |
| Release a RSA public key. | |
| void | rsaInitPrivateKey (RsaPrivateKey *key) |
| Initialize a RSA private key. | |
| void | rsaFreePrivateKey (RsaPrivateKey *key) |
| Release a RSA private key. | |
| error_t | rsaep (const RsaPublicKey *key, const Mpi *m, Mpi *c) |
| RSA encryption primitive. | |
| error_t | rsadp (const RsaPrivateKey *key, const Mpi *c, Mpi *m) |
| RSA decryption primitive. | |
| error_t | rsasp1 (const RsaPrivateKey *key, const Mpi *m, Mpi *s) |
| RSA signature primitive. | |
| error_t | rsavp1 (const RsaPublicKey *key, const Mpi *s, Mpi *m) |
| RSA verification primitive. | |
| error_t | rsaesPkcs1v15Encrypt (const PrngAlgo *prngAlgo, void *prngContext, const RsaPublicKey *key, const uint8_t *message, size_t messageLength, uint8_t *ciphertext, size_t *ciphertextLength) |
| PKCS #1 v1.5 encryption operation. | |
| error_t | rsaesPkcs1v15Decrypt (const RsaPrivateKey *key, const uint8_t *ciphertext, size_t ciphertextLength, uint8_t *message, size_t messageSize, size_t *messageLength) |
| PKCS #1 v1.5 decryption operation. | |
| error_t | rsassaPkcs1v15Sign (const RsaPrivateKey *key, const HashAlgo *hash, const uint8_t *digest, uint8_t *signature, size_t *signatureLength) |
| PKCS #1 v1.5 signature generation operation. | |
| error_t | rsassaPkcs1v15Verify (const RsaPublicKey *key, const HashAlgo *hash, const uint8_t *digest, const uint8_t *signature, size_t signatureLength) |
| PKCS #1 v1.5 signature verification operation. | |
| error_t | emsaPkcs1v15Encode (const HashAlgo *hash, const uint8_t *digest, uint8_t *em, size_t emLength) |
| PKCS #1 v1.5 encoding method. | |
| error_t | emsaPkcs1v15Decode (const uint8_t *em, size_t emLength, const uint8_t **oid, size_t *oidLength, const uint8_t **digest, size_t *digestLength) |
| PKCS #1 v1.5 decoding method. | |
Detailed Description
RSA public-key cryptography standard.
License
Copyright (C) 2010-2017 Oryx Embedded SARL. All rights reserved.
This file is part of CycloneCrypto Open.
This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Description
RSA is an algorithm for public-key cryptography which is suitable for signing as well as encryption. Refer to PKCS #1 (RSA Cryptography Standard)
- Version:
- 1.7.6
Definition in file rsa.c.
Function Documentation
| error_t emsaPkcs1v15Decode | ( | const uint8_t * | em, |
| size_t | emLength, | ||
| const uint8_t ** | oid, | ||
| size_t * | oidLength, | ||
| const uint8_t ** | digest, | ||
| size_t * | digestLength | ||
| ) |
PKCS #1 v1.5 decoding method.
- Parameters:
-
[in] em Encoded message [in] emLength Length of the encoded message [out] oid Hash algorithm OID [out] oidLength Length of the hash algorithm OID [out] digest Digest value [out] digestLength Length of the digest value
- Returns:
- Error code
| error_t rsadp | ( | const RsaPrivateKey * | key, |
| const Mpi * | c, | ||
| Mpi * | m | ||
| ) |
RSA decryption primitive.
The RSA decryption primitive recovers the message representative from the ciphertext representative under the control of a private key
- Parameters:
-
[in] key RSA private key [in] c Ciphertext representative [out] m Message representative
- Returns:
- Error code
| error_t rsaep | ( | const RsaPublicKey * | key, |
| const Mpi * | m, | ||
| Mpi * | c | ||
| ) |
RSA encryption primitive.
The RSA encryption primitive produces a ciphertext representative from a message representative under the control of a public key
- Parameters:
-
[in] key RSA public key [in] m Message representative [out] c Ciphertext representative
- Returns:
- Error code
| error_t rsaesPkcs1v15Decrypt | ( | const RsaPrivateKey * | key, |
| const uint8_t * | ciphertext, | ||
| size_t | ciphertextLength, | ||
| uint8_t * | message, | ||
| size_t | messageSize, | ||
| size_t * | messageLength | ||
| ) |
PKCS #1 v1.5 decryption operation.
- Parameters:
-
[in] key Recipient's RSA private key [in] ciphertext Ciphertext to be decrypted [in] ciphertextLength Length of the ciphertext to be decrypted [out] message Output buffer where to store the decrypted message [in] messageSize Size of the output buffer [out] messageLength Length of the decrypted message
- Returns:
- Error code
| error_t rsaesPkcs1v15Encrypt | ( | const PrngAlgo * | prngAlgo, |
| void * | prngContext, | ||
| const RsaPublicKey * | key, | ||
| const uint8_t * | message, | ||
| size_t | messageLength, | ||
| uint8_t * | ciphertext, | ||
| size_t * | ciphertextLength | ||
| ) |
PKCS #1 v1.5 encryption operation.
- Parameters:
-
[in] prngAlgo PRNG algorithm [in] prngContext Pointer to the PRNG context [in] key Recipient's RSA public key [in] message Message to be encrypted [in] messageLength Length of the message to be encrypted [out] ciphertext Ciphertext resulting from the encryption operation [out] ciphertextLength Length of the resulting ciphertext
- Returns:
- Error code
| void rsaFreePrivateKey | ( | RsaPrivateKey * | key ) |
| void rsaFreePublicKey | ( | RsaPublicKey * | key ) |
| void rsaInitPrivateKey | ( | RsaPrivateKey * | key ) |
| void rsaInitPublicKey | ( | RsaPublicKey * | key ) |
| error_t rsasp1 | ( | const RsaPrivateKey * | key, |
| const Mpi * | m, | ||
| Mpi * | s | ||
| ) |
RSA signature primitive.
The RSA signature primitive produces a signature representative from a message representative under the control of a private key
- Parameters:
-
[in] key RSA private key [in] m Message representative [out] s Signature representative
- Returns:
- Error code
| error_t rsassaPkcs1v15Sign | ( | const RsaPrivateKey * | key, |
| const HashAlgo * | hash, | ||
| const uint8_t * | digest, | ||
| uint8_t * | signature, | ||
| size_t * | signatureLength | ||
| ) |
PKCS #1 v1.5 signature generation operation.
- Parameters:
-
[in] key Signer's RSA private key [in] hash Hash function used to digest the message [in] digest Digest of the message to be signed [out] signature Resulting signature [out] signatureLength Length of the resulting signature
- Returns:
- Error code
| error_t rsassaPkcs1v15Verify | ( | const RsaPublicKey * | key, |
| const HashAlgo * | hash, | ||
| const uint8_t * | digest, | ||
| const uint8_t * | signature, | ||
| size_t | signatureLength | ||
| ) |
PKCS #1 v1.5 signature verification operation.
- Parameters:
-
[in] key Signer's RSA public key [in] hash Hash function used to digest the message [in] digest Digest of the message whose signature is to be verified [in] signature Signature to be verified [in] signatureLength Length of the signature to be verified
- Returns:
- Error code
| error_t rsavp1 | ( | const RsaPublicKey * | key, |
| const Mpi * | s, | ||
| Mpi * | m | ||
| ) |
RSA verification primitive.
The RSA verification primitive recovers the message representative from the signature representative under the control of a public key
- Parameters:
-
[in] key RSA public key [in] s Signature representative [out] m Message representative
- Returns:
- Error code
Generated on Tue Jul 12 2022 17:10:22 by
1.7.2