This class implements the RSA public key crypto algorithms. More...
Inheritance diagram for SiRSA:
Public Member Functions | |
| SiRSA (RSA *key) | |
| constructor | |
| virtual | ~SiRSA () |
| destructor | |
| virtual OFCondition | sign (const unsigned char *inputHash, unsigned long inputHashSize, E_MACType inputHashAlgorithm, unsigned char *outputSignature, unsigned long &outputSignatureSize) |
| creates a signature. | |
| virtual OFCondition | verify (const unsigned char *inputHash, unsigned long inputHashSize, E_MACType inputHashAlgorithm, const unsigned char *inputSignature, unsigned long inputSignatureSize, OFBool &verified) |
| verifies a signature. | |
| virtual unsigned long | getSize () const |
| returns the size of a block of encrypted/decrypted ciphertext in bytes. | |
| virtual E_KeyType | keyType () const |
| returns the type of public key algorithm computed by this object | |
Private Member Functions | |
| SiRSA (SiRSA &arg) | |
| private undefined copy constructor | |
| SiRSA & | operator= (SiRSA &arg) |
| private undefined copy assignment operator | |
Private Attributes | |
| RSA * | rsa |
| RSA key used for signature/verification. | |
Detailed Description
This class implements the RSA public key crypto algorithms.
Constructor & Destructor Documentation
| SiRSA::SiRSA | ( | RSA * | key | ) |
constructor
- Parameters:
-
pointer to public RSA key
Member Function Documentation
| virtual unsigned long SiRSA::getSize | ( | ) | const [virtual] |
returns the size of a block of encrypted/decrypted ciphertext in bytes.
The result depends on the public key algorithm, key size and padding scheme. In general the input to decrypt() or encrypt() must be less than or equal to this block size. The output of decrypt() or encrypt() is always equal to this block size.
- Returns:
- block size for this public key cryptosystem and key
Implements SiAlgorithm.
| virtual E_KeyType SiRSA::keyType | ( | ) | const [virtual] |
returns the type of public key algorithm computed by this object
- Returns:
- type of public key algorithm
Implements SiAlgorithm.
| virtual OFCondition SiRSA::sign | ( | const unsigned char * | inputHash, |
| unsigned long | inputHashSize, | ||
| E_MACType | inputHashAlgorithm, | ||
| unsigned char * | outputSignature, | ||
| unsigned long & | outputSignatureSize | ||
| ) | [virtual] |
creates a signature.
- Parameters:
-
inputHash array of hash key bytes that are to be signed inputHashSize length of hash key array in bytes inputHashAlgorithm MAC algorithm used for creation of hash key. Required for creation of PKCS#1 RSA signature padding. outputSignature pointer to array of at least getSize() which must be allocated by caller. outputSignatureSize returns the number of bytes written to outputSignature.
- Returns:
- SI_EC_Normal if successful, errorcode otherwise.
Implements SiAlgorithm.
| virtual OFCondition SiRSA::verify | ( | const unsigned char * | inputHash, |
| unsigned long | inputHashSize, | ||
| E_MACType | inputHashAlgorithm, | ||
| const unsigned char * | inputSignature, | ||
| unsigned long | inputSignatureSize, | ||
| OFBool & | verified | ||
| ) | [virtual] |
verifies a signature.
- Parameters:
-
inputHash array of bytes containing hash key to be verified against signature inputHashSize length of hash key array in bytes inputHashAlgorithm MAC algorithm used for creation of hash key. Required for creation of PKCS#1 RSA signature padding. inputSignature array of bytes containing signature to be verified inputSignatureSize length of signature array in bytes verified returns whether the signature was successfully verified
- Returns:
- SI_EC_Normal if successful, errorcode otherwise.
Implements SiAlgorithm.
The documentation for this class was generated from the following file:
- dcmsign/include/dcmtk/dcmsign/sirsa.h