37 lines
1.5 KiB
C
Executable File
37 lines
1.5 KiB
C
Executable File
#ifndef __RSA_H__
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#define __RSA_H__
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#include <stdint.h>
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// This is the header file for the library librsaencrypt.a
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struct public_key_class{
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long long modulus;
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long long exponent;
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};
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struct private_key_class{
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long long modulus;
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long long exponent;
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};
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// This function generates public and private keys, then stores them in the structures you
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// provide pointers to. The 3rd argument should be the text PRIME_SOURCE_FILE to have it use
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// the location specified above in this header.
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void rsa_gen_keys(struct public_key_class *pub, struct private_key_class *priv, string PRIME_SOURCE_FILE);
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// This function will encrypt the data pointed to by message. It returns a pointer to a heap
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// array containing the encrypted data, or NULL upon failure. This pointer should be freed when
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// you are finished. The encrypted data will be 8 times as large as the original data.
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uint64_t *rsa_encrypt(const unsigned char *message, const unsigned long message_size, const struct public_key_class *pub);
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// This function will decrypt the data pointed to by message. It returns a pointer to a heap
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// array containing the decrypted data, or NULL upon failure. This pointer should be freed when
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// you are finished. The variable message_size is the size in bytes of the encrypted message.
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// The decrypted data will be 1/8th the size of the encrypted data.
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unsigned char *rsa_decrypt(const uint64_t *message, const unsigned long message_size, const struct private_key_class *pub);
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#endif
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