mirror of
https://github.com/izzy2lost/ppsspp.git
synced 2026-03-10 12:43:04 -07:00
Arthur Blot
247 lines
6.9 KiB
C
247 lines
6.9 KiB
C
/*
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Draan proudly presents:
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With huge help from community:
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coyotebean, Davee, hitchhikr, kgsws, liquidzigong, Mathieulh, Proxima, SilverSpring
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******************** KIRK-ENGINE ********************
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An Open-Source implementation of KIRK (PSP crypto engine) algorithms and keys.
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Includes also additional routines for hash forging.
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********************
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef KIRK_ENGINE
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#define KIRK_ENGINE
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typedef unsigned char u8;
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typedef unsigned short int u16;
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typedef unsigned int u32;
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//Kirk return values
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#define KIRK_OPERATION_SUCCESS 0
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#define KIRK_NOT_ENABLED 1
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#define KIRK_INVALID_MODE 2
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#define KIRK_HEADER_HASH_INVALID 3
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#define KIRK_DATA_HASH_INVALID 4
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#define KIRK_SIG_CHECK_INVALID 5
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#define KIRK_UNK_1 6
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#define KIRK_UNK_2 7
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#define KIRK_UNK_3 8
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#define KIRK_UNK_4 9
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#define KIRK_UNK_5 0xA
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#define KIRK_UNK_6 0xB
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#define KIRK_NOT_INITIALIZED 0xC
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#define KIRK_INVALID_OPERATION 0xD
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#define KIRK_INVALID_SEED_CODE 0xE
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#define KIRK_INVALID_SIZE 0xF
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#define KIRK_DATA_SIZE_ZERO 0x10
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typedef struct
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{
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int mode; //0
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int unk_4; //4
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int unk_8; //8
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int keyseed; //C
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int data_size; //10
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} KIRK_AES128CBC_HEADER; //0x14
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typedef struct
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{
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u8 AES_key[16]; //0
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u8 CMAC_key[16]; //10
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u8 CMAC_header_hash[16]; //20
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u8 CMAC_data_hash[16]; //30
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u8 unused[32]; //40
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u32 mode; //60
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u8 ecdsa_hash; //64
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u8 unk3[11]; //65
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u32 data_size; //70
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u32 data_offset; //74
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u8 unk4[8]; //78
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u8 unk5[16]; //80
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} KIRK_CMD1_HEADER; //0x90
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typedef struct
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{
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u8 AES_key[16]; //0
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u8 header_sig_r[20]; //10
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u8 header_sig_s[20]; //24
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u8 data_sig_r[20]; //38
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u8 data_sig_s[20]; //4C
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u32 mode; //60
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u8 ecdsa_hash; //64
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u8 unk3[11]; //65
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u32 data_size; //70
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u32 data_offset; //74
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u8 unk4[8]; //78
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u8 unk5[16]; //80
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} KIRK_CMD1_ECDSA_HEADER; //0x90
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typedef struct
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{
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u8 r[0x14];
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u8 s[0x14];
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} ECDSA_SIG; //0x28
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typedef struct
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{
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u8 x[0x14];
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u8 y[0x14];
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} ECDSA_POINT; //0x28
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typedef struct
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{
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u32 data_size; //0
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} KIRK_SHA1_HEADER; //4
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typedef struct
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{
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u8 private_key[0x14];
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ECDSA_POINT public_key;
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} KIRK_CMD12_BUFFER;
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typedef struct
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{
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u8 multiplier[0x14];
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ECDSA_POINT public_key;
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} KIRK_CMD13_BUFFER;
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typedef struct
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{
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u8 enc_private[0x20]; //0
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u8 message_hash[0x14]; //20
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} KIRK_CMD16_BUFFER;//0x34
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typedef struct
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{
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ECDSA_POINT public_key; //0
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u8 message_hash[0x14]; //28
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ECDSA_SIG signature; //3C
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} KIRK_CMD17_BUFFER;//0x64
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//mode passed to sceUtilsBufferCopyWithRange
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#define KIRK_CMD_DECRYPT_PRIVATE 1
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#define KIRK_CMD_2 2
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#define KIRK_CMD_3 3
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#define KIRK_CMD_ENCRYPT_IV_0 4
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#define KIRK_CMD_ENCRYPT_IV_FUSE 5
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#define KIRK_CMD_ENCRYPT_IV_USER 6
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#define KIRK_CMD_DECRYPT_IV_0 7
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#define KIRK_CMD_DECRYPT_IV_FUSE 8
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#define KIRK_CMD_DECRYPT_IV_USER 9
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#define KIRK_CMD_PRIV_SIGN_CHECK 10
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#define KIRK_CMD_SHA1_HASH 11
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#define KIRK_CMD_ECDSA_GEN_KEYS 12
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#define KIRK_CMD_ECDSA_MULTIPLY_POINT 13
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#define KIRK_CMD_PRNG 14
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#define KIRK_CMD_15 15
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#define KIRK_CMD_ECDSA_SIGN 16
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#define KIRK_CMD_ECDSA_VERIFY 17
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//"mode" in header
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#define KIRK_MODE_CMD1 1
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#define KIRK_MODE_CMD2 2
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#define KIRK_MODE_CMD3 3
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#define KIRK_MODE_ENCRYPT_CBC 4
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#define KIRK_MODE_DECRYPT_CBC 5
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//sceUtilsBufferCopyWithRange errors
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#define SUBCWR_NOT_16_ALGINED 0x90A
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#define SUBCWR_HEADER_HASH_INVALID 0x920
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#define SUBCWR_BUFFER_TOO_SMALL 0x1000
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/*
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// Private Sig + Cipher
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0x01: Super-Duper decryption (no inverse)
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0x02: Encrypt Operation (inverse of 0x03)
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0x03: Decrypt Operation (inverse of 0x02)
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// Cipher
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0x04: Encrypt Operation (inverse of 0x07) (IV=0)
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0x05: Encrypt Operation (inverse of 0x08) (IV=FuseID)
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0x06: Encrypt Operation (inverse of 0x09) (IV=UserDefined)
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0x07: Decrypt Operation (inverse of 0x04)
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0x08: Decrypt Operation (inverse of 0x05)
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0x09: Decrypt Operation (inverse of 0x06)
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// Sig Gens
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0x0A: Private Signature Check (checks for private SCE sig)
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0x0B: SHA1 Hash
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0x0C: Mul1
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0x0D: Mul2
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0x0E: Random Number Gen
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0x0F: (absolutely no idea – could be KIRK initialization)
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0x10: Signature Gen
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// Sig Checks
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0x11: Signature Check (checks for generated sigs)
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0x12: Certificate Check (idstorage signatures)
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*/
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//kirk-like funcs
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int kirk_CMD0(u8* outbuff, u8* inbuff, int size, int generate_trash);
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int kirk_CMD1(u8* outbuff, u8* inbuff, int size);
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int kirk_CMD4(u8* outbuff, u8* inbuff, int size);
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int kirk_CMD7(u8* outbuff, u8* inbuff, int size);
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int kirk_CMD10(u8* inbuff, int insize);
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int kirk_CMD11(u8* outbuff, u8* inbuff, int size);
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int kirk_CMD12(u8* outbuff, int outsize);
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int kirk_CMD13(u8* outbuff, int outsize,u8* inbuff, int insize);
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int kirk_CMD14(u8* outbuff, int outsize);
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int kirk_CMD16(u8* outbuff, int outsize,u8* inbuff, int insize);
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int kirk_CMD17(u8* inbuff, int insize);
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int kirk_init(); //CMD 0xF?
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int kirk_init2(u8 *, u32, u32, u32);
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//helper funcs
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u8* kirk_4_7_get_key(int key_type);
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//kirk "ex" functions
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int kirk_CMD1_ex(u8* outbuff, u8* inbuff, int size, KIRK_CMD1_HEADER* header);
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//sce-like funcs
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int sceUtilsSetFuseID(u8*fuse);
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int sceUtilsBufferCopyWithRange(u8* outbuff, int outsize, u8* inbuff, int insize, int cmd);
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void decrypt_kirk16_private(u8 *dA_out, u8 *dA_enc);
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void encrypt_kirk16_private(u8 *dA_out, u8 *dA_dec);
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// Prototypes for the Elliptic Curve and Big Number functions
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int ecdsa_get_params(u32 type, u8 *p, u8 *a, u8 *b, u8 *N, u8 *Gx, u8 *Gy);
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int ecdsa_set_curve(u8* p,u8* a,u8* b,u8* N,u8* Gx,u8* Gy);
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void ecdsa_set_pub(u8 *Q);
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void ecdsa_set_priv(u8 *k);
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int ecdsa_verify(u8 *hash, u8 *R, u8 *S);
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void ecdsa_sign(u8 *hash, u8 *R, u8 *S);
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void ec_priv_to_pub(u8 *k, u8 *Q);
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void ec_pub_mult(u8 *k, u8 *Q);
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void bn_copy(u8 *d, u8 *a, u32 n);
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int bn_compare(u8 *a, u8 *b, u32 n);
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void bn_reduce(u8 *d, u8 *N, u32 n);
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void bn_add(u8 *d, u8 *a, u8 *b, u8 *N, u32 n);
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void bn_sub(u8 *d, u8 *a, u8 *b, u8 *N, u32 n);
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void bn_to_mon(u8 *d, u8 *N, u32 n);
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void bn_from_mon(u8 *d, u8 *N, u32 n);
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void bn_mon_mul(u8 *d, u8 *a, u8 *b, u8 *N, u32 n);
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void bn_mon_inv(u8 *d, u8 *a, u8 *N, u32 n);
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void hex_dump(char *str, u8 *buf, int size);
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#define round_up(x,n) (-(-(x) & -(n)))
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#define array_size(x) (sizeof(x) / sizeof(*(x)))
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#endif
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