bbarsa.h
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/*
* bdtlsRsa.h
* 代码源自轻量级RSA开源库：RSAEURO
* 支持CER格式的RSA公钥和私钥
*
* Created on: 2019/4/26
* Author: machao10
*/
#pragma once
/* PROTOTYPES should be set to one if and only if the compiler supports
function argument prototyping.
The following makes PROTOTYPES default to 1 if it has not already been
defined as 0 with C compiler flags. */
#ifndef PROTOTYPES
#define PROTOTYPES 1
#endif
/* PROTO_LIST is defined depending on how PROTOTYPES is defined above.
If using PROTOTYPES, then PROTO_LIST returns the list, otherwise it
returns an empty list. */
#if PROTOTYPES
#define PROTO_LIST(list) list
#else
#define PROTO_LIST(list) ()
#endif
/* POINTER defines a generic pointer type */
typedef unsigned char *POINTER;
/* UINT2 defines a two byte word */
typedef unsigned short int UINT2;
/* UINT4 defines a four byte word */
typedef unsigned int UINT4;
typedef unsigned char BYTE;
/* BYTE defines a unsigned character */
// typedef unsigned char BYTE;
/* Internal Error Codes */
/* IDOK and IDERROR changed to ID_OK and ID_ERROR */
#define ID_OK 0
#define ID_ERROR 1
/* Internal defs. */
#define TRUE 1
#define FALSE 0
/* Error codes. */
#define RE_CONTENT_ENCODING 0x0400
#define RE_DATA 0x0401
#define RE_DIGEST_ALGORITHM 0x0402
#define RE_ENCODING 0x0403
#define RE_KEY 0x0404
#define RE_KEY_ENCODING 0x0405
#define RE_LEN 0x0406
#define RE_MODULUS_LEN 0x0407
#define RE_NEED_RANDOM 0x0408
#define RE_PRIVATE_KEY 0x0409
#define RE_PUBLIC_KEY 0x040a
#define RE_SIGNATURE 0x040b
#define RE_SIGNATURE_ENCODING 0x040c
#define RE_ENCRYPTION_ALGORITHM 0x040d
#define RE_FILE 0x040e
/*
PGP 2.6.2 Now allows 2048-bit keys changing below will allow this.
It does lengthen key generation slightly if the value is increased.
*/
#define MAX_RSA_MODULUS_BITS 1024
#define MAX_RSA_MODULUS_LEN ((MAX_RSA_MODULUS_BITS + 7) / 8)
#define MAX_RSA_PRIME_BITS ((MAX_RSA_MODULUS_BITS + 1) / 2)
#define MAX_RSA_PRIME_LEN ((MAX_RSA_PRIME_BITS + 7) / 8)
/* Random structure. */
typedef struct {
unsigned int bytesNeeded; /* seed bytes required */
unsigned char state[16]; /* state of object */
unsigned int outputAvailable; /* number byte available */
unsigned char output[16]; /* output bytes */
} R_RANDOM_STRUCT;
/* RSA public and private key. */
typedef struct {
unsigned short int bits; /* length in bits of modulus */
unsigned char modulus[MAX_RSA_MODULUS_LEN]; /* modulus */
unsigned char exponent[MAX_RSA_MODULUS_LEN]; /* public exponent */
} R_RSA_PUBLIC_KEY;
typedef struct {
unsigned short int bits; /* length in bits of modulus */
unsigned char modulus[MAX_RSA_MODULUS_LEN]; /* modulus */
unsigned char publicExponent[MAX_RSA_MODULUS_LEN]; /* public exponent */
unsigned char exponent[MAX_RSA_MODULUS_LEN]; /* private exponent */
unsigned char prime[2][MAX_RSA_PRIME_LEN]; /* prime factors */
unsigned char primeExponent[2][MAX_RSA_PRIME_LEN]; /* exponents for CRT */
unsigned char coefficient[MAX_RSA_PRIME_LEN]; /* CRT coefficient */
} R_RSA_PRIVATE_KEY;
/* Printable ASCII encoding and decoding. */
int R_DecodePEMBlock PROTO_LIST ((unsigned char *, unsigned int *,
unsigned char *, unsigned int));
/* Key-pair generation. */
int getRsaPublicKeyFromPem(unsigned char* pemPublicKey,
R_RSA_PUBLIC_KEY *rsaPublicKey);
void R_RandomCreate(R_RANDOM_STRUCT *random);
int RSAPublicEncrypt PROTO_LIST ((unsigned char *, unsigned int *, unsigned char *, unsigned int,
R_RSA_PUBLIC_KEY *, R_RANDOM_STRUCT *));
int RSAPrivateDecrypt PROTO_LIST ((unsigned char *, unsigned int *, unsigned char *, unsigned int,
R_RSA_PRIVATE_KEY *));
#define R_memset(x, y, z) memset(x, y, z)
#define R_memcpy(x, y, z) memcpy(x, y, z)
#define R_memcmp(x, y, z) memcmp(x, y, z)