#ifndef _MPINTtypedef struct mpint mpint;#endif /* * AES definitions */ enum{ AESbsize= 16, AESmaxkey= 32, AESmaxrounds= 14}; typedef struct AESstate AESstate;struct AESstate{ ulong setup; ulong offset; int rounds; int keybytes; void *ekey; /* expanded encryption round key */ void *dkey; /* expanded decryption round key */ uchar key[AESmaxkey]; /* unexpanded key */ uchar ivec[AESbsize]; /* initialization vector */ uchar storage[512]; /* storage for expanded keys */}; /* block ciphers */extern void (*aes_encrypt)(ulong rk[], int Nr, uchar pt[16], uchar ct[16]);extern void (*aes_decrypt)(ulong rk[], int Nr, uchar ct[16], uchar pt[16]); void setupAESstate(AESstate *s, uchar key[], int nkey, uchar *ivec); void aesCBCencrypt(uchar *p, int len, AESstate *s);void aesCBCdecrypt(uchar *p, int len, AESstate *s);void aesCFBencrypt(uchar *p, int len, AESstate *s);void aesCFBdecrypt(uchar *p, int len, AESstate *s);void aesOFBencrypt(uchar *p, int len, AESstate *s); typedef struct AESGCMstate AESGCMstate;struct AESGCMstate{ AESstate a; ulong H[4]; ulong M[16][256][4];}; void setupAESGCMstate(AESGCMstate *s, uchar *key, int keylen, uchar *iv, int ivlen);void aesgcm_setiv(AESGCMstate *s, uchar *iv, int ivlen);void aesgcm_encrypt(uchar *dat, ulong ndat, uchar *aad, ulong naad, uchar tag[16], AESGCMstate *s);int aesgcm_decrypt(uchar *dat, ulong ndat, uchar *aad, ulong naad, uchar tag[16], AESGCMstate *s); /* * Blowfish Definitions */ enum{ BFbsize = 8, BFrounds= 16}; /* 16-round Blowfish */typedef struct BFstate BFstate;struct BFstate{ ulong setup; uchar key[56]; uchar ivec[8]; u32int pbox[BFrounds+2]; u32int sbox[1024];}; void setupBFstate(BFstate *s, uchar key[], int keybytes, uchar *ivec);void bfCBCencrypt(uchar*, int, BFstate*);void bfCBCdecrypt(uchar*, int, BFstate*);void bfECBencrypt(uchar*, int, BFstate*);void bfECBdecrypt(uchar*, int, BFstate*); /* * Chacha definitions */ enum{ ChachaBsize= 64, ChachaKeylen= 256/8, ChachaIVlen= 96/8, XChachaIVlen= 192/8,}; typedef struct Chachastate Chachastate;struct Chachastate{ union{ u32int input[16]; struct { u32int constant[4]; u32int key[8]; u32int counter; u32int iv[3]; }; }; u32int xkey[8]; int rounds; int ivwords;}; void setupChachastate(Chachastate*, uchar*, ulong, uchar*, ulong, int);void chacha_setiv(Chachastate *, uchar*);void chacha_setblock(Chachastate*, u64int);void chacha_encrypt(uchar*, ulong, Chachastate*);void chacha_encrypt2(uchar*, uchar*, ulong, Chachastate*); void hchacha(uchar h[32], uchar *key, ulong keylen, uchar nonce[16], int rounds); void ccpoly_encrypt(uchar *dat, ulong ndat, uchar *aad, ulong naad, uchar tag[16], Chachastate *cs);int ccpoly_decrypt(uchar *dat, ulong ndat, uchar *aad, ulong naad, uchar tag[16], Chachastate *cs); /* * Salsa definitions */enum{ SalsaBsize= 64, SalsaKeylen= 256/8, SalsaIVlen= 64/8, XSalsaIVlen= 192/8,}; typedef struct Salsastate Salsastate;struct Salsastate{ u32int input[16]; u32int xkey[8]; int rounds; int ivwords;}; void setupSalsastate(Salsastate*, uchar*, ulong, uchar*, ulong, int);void salsa_setiv(Salsastate*, uchar*);void salsa_setblock(Salsastate*, u64int);void salsa_encrypt(uchar*, ulong, Salsastate*);void salsa_encrypt2(uchar*, uchar*, ulong, Salsastate*); void salsa_core(u32int in[16], u32int out[16], int rounds); void hsalsa(uchar h[32], uchar *key, ulong keylen, uchar nonce[16], int rounds); /* * DES definitions */ enum{ DESbsize= 8}; /* single des */typedef struct DESstate DESstate;struct DESstate{ ulong setup; uchar key[8]; /* unexpanded key */ ulong expanded[32]; /* expanded key */ uchar ivec[8]; /* initialization vector */}; void setupDESstate(DESstate *s, uchar key[8], uchar *ivec);void des_key_setup(uchar[8], ulong[32]);void block_cipher(ulong*, uchar*, int);void desCBCencrypt(uchar*, int, DESstate*);void desCBCdecrypt(uchar*, int, DESstate*);void desECBencrypt(uchar*, int, DESstate*);void desECBdecrypt(uchar*, int, DESstate*); /* for backward compatibility with 7-byte DES key format */void des56to64(uchar *k56, uchar *k64);void des64to56(uchar *k64, uchar *k56);void key_setup(uchar[7], ulong[32]); /* triple des encrypt/decrypt orderings */enum { DES3E= 0, DES3D= 1, DES3EEE= 0, DES3EDE= 2, DES3DED= 5, DES3DDD= 7}; typedef struct DES3state DES3state;struct DES3state{ ulong setup; uchar key[3][8]; /* unexpanded key */ ulong expanded[3][32]; /* expanded key */ uchar ivec[8]; /* initialization vector */}; void setupDES3state(DES3state *s, uchar key[3][8], uchar *ivec);void triple_block_cipher(ulong keys[3][32], uchar*, int);void des3CBCencrypt(uchar*, int, DES3state*);void des3CBCdecrypt(uchar*, int, DES3state*);void des3ECBencrypt(uchar*, int, DES3state*);void des3ECBdecrypt(uchar*, int, DES3state*); /* * digests */ enum{ SHA1dlen= 20, /* SHA digest length */ SHA2_224dlen= 28, /* SHA-224 digest length */ SHA2_256dlen= 32, /* SHA-256 digest length */ SHA2_384dlen= 48, /* SHA-384 digest length */ SHA2_512dlen= 64, /* SHA-512 digest length */ MD4dlen= 16, /* MD4 digest length */ MD5dlen= 16, /* MD5 digest length */ Poly1305dlen= 16, /* Poly1305 digest length */ Hmacblksz = 64, /* in bytes; from rfc2104 */}; typedef struct DigestState DigestState;struct DigestState{ uvlong len; union { u32int state[16]; u64int bstate[8]; }; uchar buf[256]; int blen; char malloced; char seeded;};typedef struct DigestState SHAstate; /* obsolete name */typedef struct DigestState SHA1state;typedef struct DigestState SHA2_224state;typedef struct DigestState SHA2_256state;typedef struct DigestState SHA2_384state;typedef struct DigestState SHA2_512state;typedef struct DigestState MD5state;typedef struct DigestState MD4state; DigestState* md4(uchar*, ulong, uchar*, DigestState*);DigestState* md5(uchar*, ulong, uchar*, DigestState*);DigestState* sha1(uchar*, ulong, uchar*, DigestState*);DigestState* sha2_224(uchar*, ulong, uchar*, DigestState*);DigestState* sha2_256(uchar*, ulong, uchar*, DigestState*);DigestState* sha2_384(uchar*, ulong, uchar*, DigestState*);DigestState* sha2_512(uchar*, ulong, uchar*, DigestState*);DigestState* hmac_x(uchar *p, ulong len, uchar *key, ulong klen, uchar *digest, DigestState *s, DigestState*(*x)(uchar*, ulong, uchar*, DigestState*), int xlen);DigestState* hmac_md5(uchar*, ulong, uchar*, ulong, uchar*, DigestState*);DigestState* hmac_sha1(uchar*, ulong, uchar*, ulong, uchar*, DigestState*);DigestState* hmac_sha2_224(uchar*, ulong, uchar*, ulong, uchar*, DigestState*);DigestState* hmac_sha2_256(uchar*, ulong, uchar*, ulong, uchar*, DigestState*);DigestState* hmac_sha2_384(uchar*, ulong, uchar*, ulong, uchar*, DigestState*);DigestState* hmac_sha2_512(uchar*, ulong, uchar*, ulong, uchar*, DigestState*);char* md5pickle(MD5state*);MD5state* md5unpickle(char*);char* sha1pickle(SHA1state*);SHA1state* sha1unpickle(char*); DigestState* poly1305(uchar*, ulong, uchar*, ulong, uchar*, DigestState*); /* * random number generation */void genrandom(uchar *buf, int nbytes);void prng(uchar *buf, int nbytes);ulong fastrand(void);ulong nfastrand(ulong); /* * primes */void genprime(mpint *p, int n, int accuracy); /* generate n-bit probable prime */void gensafeprime(mpint *p, mpint *alpha, int n, int accuracy); /* prime & generator */void genstrongprime(mpint *p, int n, int accuracy); /* generate n-bit strong prime */void DSAprimes(mpint *q, mpint *p, uchar seed[SHA1dlen]);int probably_prime(mpint *n, int nrep); /* miller-rabin test */int smallprimetest(mpint *p); /* returns -1 if not prime, 0 otherwise */ /* * rc4 */typedef struct RC4state RC4state;struct RC4state{ uchar state[256]; uchar x; uchar y;}; void setupRC4state(RC4state*, uchar*, int);void rc4(RC4state*, uchar*, int);void rc4skip(RC4state*, int);void rc4back(RC4state*, int); /* * rsa */typedef struct RSApub RSApub;typedef struct RSApriv RSApriv;typedef struct PEMChain PEMChain; /* public/encryption key */struct RSApub{ mpint *n; /* modulus */ mpint *ek; /* exp (encryption key) */}; /* private/decryption key */struct RSApriv{ RSApub pub; mpint *dk; /* exp (decryption key) */ /* precomputed values to help with chinese remainder theorem calc */ mpint *p; mpint *q; mpint *kp; /* dk mod p-1 */ mpint *kq; /* dk mod q-1 */ mpint *c2; /* (inv p) mod q */}; struct PEMChain{ PEMChain*next; uchar *pem; int pemlen;}; RSApriv* rsagen(int nlen, int elen, int rounds);RSApriv* rsafill(mpint *n, mpint *e, mpint *d, mpint *p, mpint *q);mpint* rsaencrypt(RSApub *k, mpint *in, mpint *out);mpint* rsadecrypt(RSApriv *k, mpint *in, mpint *out);RSApub* rsapuballoc(void);void rsapubfree(RSApub*);RSApriv* rsaprivalloc(void);void rsaprivfree(RSApriv*);RSApub* rsaprivtopub(RSApriv*);RSApub* X509toRSApub(uchar*, int, char*, int);RSApub* asn1toRSApub(uchar*, int);RSApriv* asn1toRSApriv(uchar*, int);void asn1dump(uchar *der, int len);uchar* decodePEM(char *s, char *type, int *len, char **new_s);PEMChain* decodepemchain(char *s, char *type);uchar* X509rsagen(RSApriv *priv, char *subj, ulong valid[2], int *certlen);uchar* X509rsareq(RSApriv *priv, char *subj, int *certlen);char* X509rsaverify(uchar *cert, int ncert, RSApub *pk);char* X509rsaverifydigest(uchar *sig, int siglen, uchar *edigest, int edigestlen, RSApub *pk); void X509dump(uchar *cert, int ncert); mpint* pkcs1padbuf(uchar *buf, int len, mpint *modulus, int blocktype);int pkcs1unpadbuf(uchar *buf, int len, mpint *modulus, int blocktype);int asn1encodeRSApub(RSApub *pk, uchar *buf, int len);int asn1encodedigest(DigestState* (*fun)(uchar*, ulong, uchar*, DigestState*), uchar *digest, uchar *buf, int len); /* * elgamal */typedef struct EGpub EGpub;typedef struct EGpriv EGpriv;typedef struct EGsig EGsig; /* public/encryption key */struct EGpub{ mpint *p; /* modulus */ mpint *alpha; /* generator */ mpint *key; /* (encryption key) alpha**secret mod p */}; /* private/decryption key */struct EGpriv{ EGpub pub; mpint *secret; /* (decryption key) */}; /* signature */struct EGsig{ mpint *r, *s;}; EGpriv* eggen(int nlen, int rounds);mpint* egencrypt(EGpub *k, mpint *in, mpint *out); /* deprecated */mpint* egdecrypt(EGpriv *k, mpint *in, mpint *out);EGsig* egsign(EGpriv *k, mpint *m);int egverify(EGpub *k, EGsig *sig, mpint *m);EGpub* egpuballoc(void);void egpubfree(EGpub*);EGpriv* egprivalloc(void);void egprivfree(EGpriv*);EGsig* egsigalloc(void);void egsigfree(EGsig*);EGpub* egprivtopub(EGpriv*); /* * dsa */typedef struct DSApub DSApub;typedef struct DSApriv DSApriv;typedef struct DSAsig DSAsig; /* public/encryption key */struct DSApub{ mpint *p; /* modulus */ mpint *q; /* group order, q divides p-1 */ mpint *alpha; /* group generator */ mpint *key; /* (encryption key) alpha**secret mod p */}; /* private/decryption key */struct DSApriv{ DSApub pub; mpint *secret; /* (decryption key) */}; /* signature */struct DSAsig{ mpint *r, *s;}; DSApriv* dsagen(DSApub *opub); /* opub not checked for consistency! */DSAsig* dsasign(DSApriv *k, mpint *m);int dsaverify(DSApub *k, DSAsig *sig, mpint *m);DSApub* dsapuballoc(void);void dsapubfree(DSApub*);DSApriv* dsaprivalloc(void);void dsaprivfree(DSApriv*);DSAsig* dsasigalloc(void);void dsasigfree(DSAsig*);DSApub* dsaprivtopub(DSApriv*); /* * TLS */typedef struct Thumbprint{ struct Thumbprint *next; uchar hash[SHA2_256dlen]; uchar len;} Thumbprint; typedef struct TLSconn{ char dir[40]; /* connection directory */ uchar *cert; /* certificate (local on input, remote on output) */ uchar *sessionID; uchar *psk; int certlen; int sessionIDlen; int psklen; int (*trace)(char*fmt, ...); PEMChain*chain; /* optional extra certificate evidence for servers to present */ char *sessionType; uchar *sessionKey; int sessionKeylen; char *sessionConst; char *serverName; char *pskID;} TLSconn; /* tlshand.c */int tlsClient(int fd, TLSconn *c);int tlsServer(int fd, TLSconn *c); /* thumb.c */Thumbprint* initThumbprints(char *ok, char *crl, char *tag);void freeThumbprints(Thumbprint *ok);int okThumbprint(uchar *hash, int len, Thumbprint *ok);int okCertificate(uchar *cert, int len, Thumbprint *ok); /* readcert.c */uchar *readcert(char *filename, int *pcertlen);PEMChain*readcertchain(char *filename); /* aes_xts.c */void aes_xts_encrypt(AESstate *tweak, AESstate *ecb, uvlong sectorNumber, uchar *input, uchar *output, ulong len);void aes_xts_decrypt(AESstate *tweak, AESstate *ecb, uvlong sectorNumber, uchar *input, uchar *output, ulong len); Lines 1–500 of 594. Load more
#ifndef _MPINT typedef struct mpint mpint; #endif /* * AES definitions */ enum { AESbsize= 16, AESmaxkey= 32, AESmaxrounds= 14 }; typedef struct AESstate AESstate; struct AESstate { ulong setup; ulong offset; int rounds; int keybytes; void *ekey; /* expanded encryption round key */ void *dkey; /* expanded decryption round key */ uchar key[AESmaxkey]; /* unexpanded key */ uchar ivec[AESbsize]; /* initialization vector */ uchar storage[512]; /* storage for expanded keys */ }; /* block ciphers */ extern void (*aes_encrypt)(ulong rk[], int Nr, uchar pt[16], uchar ct[16]); extern void (*aes_decrypt)(ulong rk[], int Nr, uchar ct[16], uchar pt[16]); void setupAESstate(AESstate *s, uchar key[], int nkey, uchar *ivec); void aesCBCencrypt(uchar *p, int len, AESstate *s); void aesCBCdecrypt(uchar *p, int len, AESstate *s); void aesCFBencrypt(uchar *p, int len, AESstate *s); void aesCFBdecrypt(uchar *p, int len, AESstate *s); void aesOFBencrypt(uchar *p, int len, AESstate *s); typedef struct AESGCMstate AESGCMstate; struct AESGCMstate { AESstate a; ulong H[4]; ulong M[16][256][4]; }; void setupAESGCMstate(AESGCMstate *s, uchar *key, int keylen, uchar *iv, int ivlen); void aesgcm_setiv(AESGCMstate *s, uchar *iv, int ivlen); void aesgcm_encrypt(uchar *dat, ulong ndat, uchar *aad, ulong naad, uchar tag[16], AESGCMstate *s); int aesgcm_decrypt(uchar *dat, ulong ndat, uchar *aad, ulong naad, uchar tag[16], AESGCMstate *s); /* * Blowfish Definitions */ enum { BFbsize = 8, BFrounds= 16 }; /* 16-round Blowfish */ typedef struct BFstate BFstate; struct BFstate { ulong setup; uchar key[56]; uchar ivec[8]; u32int pbox[BFrounds+2]; u32int sbox[1024]; }; void setupBFstate(BFstate *s, uchar key[], int keybytes, uchar *ivec); void bfCBCencrypt(uchar*, int, BFstate*); void bfCBCdecrypt(uchar*, int, BFstate*); void bfECBencrypt(uchar*, int, BFstate*); void bfECBdecrypt(uchar*, int, BFstate*); /* * Chacha definitions */ enum { ChachaBsize= 64, ChachaKeylen= 256/8, ChachaIVlen= 96/8, XChachaIVlen= 192/8, }; typedef struct Chachastate Chachastate; struct Chachastate { union{ u32int input[16]; struct { u32int constant[4]; u32int key[8]; u32int counter; u32int iv[3]; }; }; u32int xkey[8]; int rounds; int ivwords; }; void setupChachastate(Chachastate*, uchar*, ulong, uchar*, ulong, int); void chacha_setiv(Chachastate *, uchar*); void chacha_setblock(Chachastate*, u64int); void chacha_encrypt(uchar*, ulong, Chachastate*); void chacha_encrypt2(uchar*, uchar*, ulong, Chachastate*); void hchacha(uchar h[32], uchar *key, ulong keylen, uchar nonce[16], int rounds); void ccpoly_encrypt(uchar *dat, ulong ndat, uchar *aad, ulong naad, uchar tag[16], Chachastate *cs); int ccpoly_decrypt(uchar *dat, ulong ndat, uchar *aad, ulong naad, uchar tag[16], Chachastate *cs); /* * Salsa definitions */ enum { SalsaBsize= 64, SalsaKeylen= 256/8, SalsaIVlen= 64/8, XSalsaIVlen= 192/8, }; typedef struct Salsastate Salsastate; struct Salsastate { u32int input[16]; u32int xkey[8]; int rounds; int ivwords; }; void setupSalsastate(Salsastate*, uchar*, ulong, uchar*, ulong, int); void salsa_setiv(Salsastate*, uchar*); void salsa_setblock(Salsastate*, u64int); void salsa_encrypt(uchar*, ulong, Salsastate*); void salsa_encrypt2(uchar*, uchar*, ulong, Salsastate*); void salsa_core(u32int in[16], u32int out[16], int rounds); void hsalsa(uchar h[32], uchar *key, ulong keylen, uchar nonce[16], int rounds); /* * DES definitions */ enum { DESbsize= 8 }; /* single des */ typedef struct DESstate DESstate; struct DESstate { ulong setup; uchar key[8]; /* unexpanded key */ ulong expanded[32]; /* expanded key */ uchar ivec[8]; /* initialization vector */ }; void setupDESstate(DESstate *s, uchar key[8], uchar *ivec); void des_key_setup(uchar[8], ulong[32]); void block_cipher(ulong*, uchar*, int); void desCBCencrypt(uchar*, int, DESstate*); void desCBCdecrypt(uchar*, int, DESstate*); void desECBencrypt(uchar*, int, DESstate*); void desECBdecrypt(uchar*, int, DESstate*); /* for backward compatibility with 7-byte DES key format */ void des56to64(uchar *k56, uchar *k64); void des64to56(uchar *k64, uchar *k56); void key_setup(uchar[7], ulong[32]); /* triple des encrypt/decrypt orderings */ enum { DES3E= 0, DES3D= 1, DES3EEE= 0, DES3EDE= 2, DES3DED= 5, DES3DDD= 7 }; typedef struct DES3state DES3state; struct DES3state { ulong setup; uchar key[3][8]; /* unexpanded key */ ulong expanded[3][32]; /* expanded key */ uchar ivec[8]; /* initialization vector */ }; void setupDES3state(DES3state *s, uchar key[3][8], uchar *ivec); void triple_block_cipher(ulong keys[3][32], uchar*, int); void des3CBCencrypt(uchar*, int, DES3state*); void des3CBCdecrypt(uchar*, int, DES3state*); void des3ECBencrypt(uchar*, int, DES3state*); void des3ECBdecrypt(uchar*, int, DES3state*); /* * digests */ enum { SHA1dlen= 20, /* SHA digest length */ SHA2_224dlen= 28, /* SHA-224 digest length */ SHA2_256dlen= 32, /* SHA-256 digest length */ SHA2_384dlen= 48, /* SHA-384 digest length */ SHA2_512dlen= 64, /* SHA-512 digest length */ MD4dlen= 16, /* MD4 digest length */ MD5dlen= 16, /* MD5 digest length */ Poly1305dlen= 16, /* Poly1305 digest length */ Hmacblksz = 64, /* in bytes; from rfc2104 */ }; typedef struct DigestState DigestState; struct DigestState { uvlong len; union { u32int state[16]; u64int bstate[8]; }; uchar buf[256]; int blen; char malloced; char seeded; }; typedef struct DigestState SHAstate; /* obsolete name */ typedef struct DigestState SHA1state; typedef struct DigestState SHA2_224state; typedef struct DigestState SHA2_256state; typedef struct DigestState SHA2_384state; typedef struct DigestState SHA2_512state; typedef struct DigestState MD5state; typedef struct DigestState MD4state; DigestState* md4(uchar*, ulong, uchar*, DigestState*); DigestState* md5(uchar*, ulong, uchar*, DigestState*); DigestState* sha1(uchar*, ulong, uchar*, DigestState*); DigestState* sha2_224(uchar*, ulong, uchar*, DigestState*); DigestState* sha2_256(uchar*, ulong, uchar*, DigestState*); DigestState* sha2_384(uchar*, ulong, uchar*, DigestState*); DigestState* sha2_512(uchar*, ulong, uchar*, DigestState*); DigestState* hmac_x(uchar *p, ulong len, uchar *key, ulong klen, uchar *digest, DigestState *s, DigestState*(*x)(uchar*, ulong, uchar*, DigestState*), int xlen); DigestState* hmac_md5(uchar*, ulong, uchar*, ulong, uchar*, DigestState*); DigestState* hmac_sha1(uchar*, ulong, uchar*, ulong, uchar*, DigestState*); DigestState* hmac_sha2_224(uchar*, ulong, uchar*, ulong, uchar*, DigestState*); DigestState* hmac_sha2_256(uchar*, ulong, uchar*, ulong, uchar*, DigestState*); DigestState* hmac_sha2_384(uchar*, ulong, uchar*, ulong, uchar*, DigestState*); DigestState* hmac_sha2_512(uchar*, ulong, uchar*, ulong, uchar*, DigestState*); char* md5pickle(MD5state*); MD5state* md5unpickle(char*); char* sha1pickle(SHA1state*); SHA1state* sha1unpickle(char*); DigestState* poly1305(uchar*, ulong, uchar*, ulong, uchar*, DigestState*); /* * random number generation */ void genrandom(uchar *buf, int nbytes); void prng(uchar *buf, int nbytes); ulong fastrand(void); ulong nfastrand(ulong); /* * primes */ void genprime(mpint *p, int n, int accuracy); /* generate n-bit probable prime */ void gensafeprime(mpint *p, mpint *alpha, int n, int accuracy); /* prime & generator */ void genstrongprime(mpint *p, int n, int accuracy); /* generate n-bit strong prime */ void DSAprimes(mpint *q, mpint *p, uchar seed[SHA1dlen]); int probably_prime(mpint *n, int nrep); /* miller-rabin test */ int smallprimetest(mpint *p); /* returns -1 if not prime, 0 otherwise */ /* * rc4 */ typedef struct RC4state RC4state; struct RC4state { uchar state[256]; uchar x; uchar y; }; void setupRC4state(RC4state*, uchar*, int); void rc4(RC4state*, uchar*, int); void rc4skip(RC4state*, int); void rc4back(RC4state*, int); /* * rsa */ typedef struct RSApub RSApub; typedef struct RSApriv RSApriv; typedef struct PEMChain PEMChain; /* public/encryption key */ struct RSApub { mpint *n; /* modulus */ mpint *ek; /* exp (encryption key) */ }; /* private/decryption key */ struct RSApriv { RSApub pub; mpint *dk; /* exp (decryption key) */ /* precomputed values to help with chinese remainder theorem calc */ mpint *p; mpint *q; mpint *kp; /* dk mod p-1 */ mpint *kq; /* dk mod q-1 */ mpint *c2; /* (inv p) mod q */ }; struct PEMChain{ PEMChain*next; uchar *pem; int pemlen; }; RSApriv* rsagen(int nlen, int elen, int rounds); RSApriv* rsafill(mpint *n, mpint *e, mpint *d, mpint *p, mpint *q); mpint* rsaencrypt(RSApub *k, mpint *in, mpint *out); mpint* rsadecrypt(RSApriv *k, mpint *in, mpint *out); RSApub* rsapuballoc(void); void rsapubfree(RSApub*); RSApriv* rsaprivalloc(void); void rsaprivfree(RSApriv*); RSApub* rsaprivtopub(RSApriv*); RSApub* X509toRSApub(uchar*, int, char*, int); RSApub* asn1toRSApub(uchar*, int); RSApriv* asn1toRSApriv(uchar*, int); void asn1dump(uchar *der, int len); uchar* decodePEM(char *s, char *type, int *len, char **new_s); PEMChain* decodepemchain(char *s, char *type); uchar* X509rsagen(RSApriv *priv, char *subj, ulong valid[2], int *certlen); uchar* X509rsareq(RSApriv *priv, char *subj, int *certlen); char* X509rsaverify(uchar *cert, int ncert, RSApub *pk); char* X509rsaverifydigest(uchar *sig, int siglen, uchar *edigest, int edigestlen, RSApub *pk); void X509dump(uchar *cert, int ncert); mpint* pkcs1padbuf(uchar *buf, int len, mpint *modulus, int blocktype); int pkcs1unpadbuf(uchar *buf, int len, mpint *modulus, int blocktype); int asn1encodeRSApub(RSApub *pk, uchar *buf, int len); int asn1encodedigest(DigestState* (*fun)(uchar*, ulong, uchar*, DigestState*), uchar *digest, uchar *buf, int len); /* * elgamal */ typedef struct EGpub EGpub; typedef struct EGpriv EGpriv; typedef struct EGsig EGsig; /* public/encryption key */ struct EGpub { mpint *p; /* modulus */ mpint *alpha; /* generator */ mpint *key; /* (encryption key) alpha**secret mod p */ }; /* private/decryption key */ struct EGpriv { EGpub pub; mpint *secret; /* (decryption key) */ }; /* signature */ struct EGsig { mpint *r, *s; }; EGpriv* eggen(int nlen, int rounds); mpint* egencrypt(EGpub *k, mpint *in, mpint *out); /* deprecated */ mpint* egdecrypt(EGpriv *k, mpint *in, mpint *out); EGsig* egsign(EGpriv *k, mpint *m); int egverify(EGpub *k, EGsig *sig, mpint *m); EGpub* egpuballoc(void); void egpubfree(EGpub*); EGpriv* egprivalloc(void); void egprivfree(EGpriv*); EGsig* egsigalloc(void); void egsigfree(EGsig*); EGpub* egprivtopub(EGpriv*); /* * dsa */ typedef struct DSApub DSApub; typedef struct DSApriv DSApriv; typedef struct DSAsig DSAsig; /* public/encryption key */ struct DSApub { mpint *p; /* modulus */ mpint *q; /* group order, q divides p-1 */ mpint *alpha; /* group generator */ mpint *key; /* (encryption key) alpha**secret mod p */ }; /* private/decryption key */ struct DSApriv { DSApub pub; mpint *secret; /* (decryption key) */ }; /* signature */ struct DSAsig { mpint *r, *s; }; DSApriv* dsagen(DSApub *opub); /* opub not checked for consistency! */ DSAsig* dsasign(DSApriv *k, mpint *m); int dsaverify(DSApub *k, DSAsig *sig, mpint *m); DSApub* dsapuballoc(void); void dsapubfree(DSApub*); DSApriv* dsaprivalloc(void); void dsaprivfree(DSApriv*); DSAsig* dsasigalloc(void); void dsasigfree(DSAsig*); DSApub* dsaprivtopub(DSApriv*); /* * TLS */ typedef struct Thumbprint{ struct Thumbprint *next; uchar hash[SHA2_256dlen]; uchar len; } Thumbprint; typedef struct TLSconn{ char dir[40]; /* connection directory */ uchar *cert; /* certificate (local on input, remote on output) */ uchar *sessionID; uchar *psk; int certlen; int sessionIDlen; int psklen; int (*trace)(char*fmt, ...); PEMChain*chain; /* optional extra certificate evidence for servers to present */ char *sessionType; uchar *sessionKey; int sessionKeylen; char *sessionConst; char *serverName; char *pskID; } TLSconn; /* tlshand.c */ int tlsClient(int fd, TLSconn *c); int tlsServer(int fd, TLSconn *c); /* thumb.c */ Thumbprint* initThumbprints(char *ok, char *crl, char *tag); void freeThumbprints(Thumbprint *ok); int okThumbprint(uchar *hash, int len, Thumbprint *ok); int okCertificate(uchar *cert, int len, Thumbprint *ok); /* readcert.c */ uchar *readcert(char *filename, int *pcertlen); PEMChain*readcertchain(char *filename); /* aes_xts.c */ void aes_xts_encrypt(AESstate *tweak, AESstate *ecb, uvlong sectorNumber, uchar *input, uchar *output, ulong len); void aes_xts_decrypt(AESstate *tweak, AESstate *ecb, uvlong sectorNumber, uchar *input, uchar *output, ulong len);