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https://github.com/citra-emu/citra.git
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147 lines
2.7 KiB
C
147 lines
2.7 KiB
C
#ifndef _CTR_H_
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#define _CTR_H_
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#include "polarssl/aes.h"
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#include "polarssl/rsa.h"
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#include "polarssl/sha2.h"
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#include "types.h"
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#include "keyset.h"
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#define MAGIC_NCCH 0x4843434E
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#define MAGIC_NCSD 0x4453434E
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#define MAGIC_FIRM 0x4D524946
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#define MAGIC_CWAV 0x56415743
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#define MAGIC_IVFC 0x43465649
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#define SIZE_128MB (128 * 1024 * 1024)
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typedef enum
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{
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FILETYPE_UNKNOWN = 0,
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FILETYPE_CCI,
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FILETYPE_CXI,
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FILETYPE_CIA,
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FILETYPE_EXHEADER,
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FILETYPE_TMD,
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FILETYPE_LZSS,
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FILETYPE_FIRM,
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FILETYPE_CWAV,
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FILETYPE_ROMFS
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} ctr_filetypes;
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typedef struct
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{
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u8 ctr[16];
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u8 iv[16];
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aes_context aes;
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} ctr_aes_context;
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typedef struct
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{
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rsa_context rsa;
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} ctr_rsa_context;
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typedef struct
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{
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sha2_context sha;
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} ctr_sha256_context;
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#ifdef __cplusplus
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extern "C" {
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#endif
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void ctr_set_iv( ctr_aes_context* ctx,
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u8 iv[16] );
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void ctr_add_counter( ctr_aes_context* ctx,
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u32 carry );
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void ctr_set_counter( ctr_aes_context* ctx,
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u8 ctr[16] );
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void ctr_init_counter( ctr_aes_context* ctx,
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u8 key[16],
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u8 ctr[16] );
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void ctr_crypt_counter_block( ctr_aes_context* ctx,
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u8 input[16],
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u8 output[16] );
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void ctr_crypt_counter( ctr_aes_context* ctx,
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u8* input,
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u8* output,
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u32 size );
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void ctr_init_cbc_encrypt( ctr_aes_context* ctx,
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u8 key[16],
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u8 iv[16] );
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void ctr_init_cbc_decrypt( ctr_aes_context* ctx,
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u8 key[16],
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u8 iv[16] );
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void ctr_encrypt_cbc( ctr_aes_context* ctx,
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u8* input,
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u8* output,
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u32 size );
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void ctr_decrypt_cbc( ctr_aes_context* ctx,
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u8* input,
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u8* output,
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u32 size );
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void ctr_rsa_init_key_pubmodulus( rsakey2048* key,
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u8 modulus[0x100] );
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void ctr_rsa_init_key_pub( rsakey2048* key,
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u8 modulus[0x100],
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u8 exponent[3] );
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int ctr_rsa_init( ctr_rsa_context* ctx,
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rsakey2048* key );
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void ctr_rsa_free( ctr_rsa_context* ctx );
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int ctr_rsa_verify_hash( const u8 signature[0x100],
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const u8 hash[0x20],
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rsakey2048* key);
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int ctr_rsa_sign_hash( const u8 hash[0x20],
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u8 signature[0x100],
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rsakey2048* key );
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int ctr_rsa_public( const u8 signature[0x100],
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u8 output[0x100],
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rsakey2048* key );
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void ctr_sha_256( const u8* data,
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u32 size,
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u8 hash[0x20] );
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int ctr_sha_256_verify( const u8* data,
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u32 size,
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const u8 checkhash[0x20] );
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void ctr_sha_256_init( ctr_sha256_context* ctx );
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void ctr_sha_256_update( ctr_sha256_context* ctx,
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const u8* data,
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u32 size );
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void ctr_sha_256_finish( ctr_sha256_context* ctx,
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u8 hash[0x20] );
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#ifdef __cplusplus
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}
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#endif
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#endif // _CTR_H_
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