ref: d97eb114d5dd63f3f0d5b96d8f34a1613761793e
dir: /sys/include/ape/libsec.h/
#ifndef _PLAN9_SOURCE This header file is an extension to ANSI/POSIX #endif #ifndef __LIBSEC_H_ #define __LIBSEC_H_ #pragma src "/sys/src/ape/lib/sec" #pragma lib "/$M/lib/ape/libsec.a" #include <u.h> #ifndef _MPINT typedef struct mpint mpint; #endif /* * AES definitions */ enum { AESbsize= 16, AESmaxkey= 32, AESmaxrounds= 14 }; typedef struct AESstate AESstate; struct AESstate { ulong setup; int rounds; int keybytes; uchar key[AESmaxkey]; /* unexpanded key */ ulong ekey[4*(AESmaxrounds + 1)]; /* encryption key */ ulong dkey[4*(AESmaxrounds + 1)]; /* decryption key */ uchar ivec[AESbsize]; /* initialization vector */ uchar mackey[3 * AESbsize]; /* 3 XCBC mac 96 keys */ }; /* block ciphers */ void aes_encrypt(ulong rk[], int Nr, uchar pt[16], uchar ct[16]); void aes_decrypt(ulong rk[], int Nr, uchar ct[16], uchar pt[16]); void setupAESstate(AESstate *s, uchar key[], int keybytes, uchar *ivec); void aesCBCencrypt(uchar *p, int len, AESstate *s); void aesCBCdecrypt(uchar *p, int len, AESstate *s); void setupAESXCBCstate(AESstate *s); uchar* aesXCBCmac(uchar *p, int len, AESstate *s); typedef struct AESGCMstate AESGCMstate; struct AESGCMstate { AESstate; 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, }; typedef struct Chachastate Chachastate; struct Chachastate { union{ u32int input[16]; struct { u32int constant[4]; u32int key[8]; u32int counter; u32int iv[3]; }; }; 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 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 key[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); 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* X509rsaverifydigest(uchar *sig, int siglen, uchar *edigest, int edigestlen, RSApub *pk); char* X509rsaverify(uchar *cert, int ncert, RSApub *pk); void X509dump(uchar *cert, int ncert); /* * 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*); DSApriv* asn1toDSApriv(uchar*, int); /* * TLS */ typedef struct Thumbprint{ struct Thumbprint *next; uchar sha1[SHA1dlen]; } 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); void freeThumbprints(Thumbprint *ok); int okThumbprint(uchar *sha1, Thumbprint *ok); /* readcert.c */ uchar *readcert(char *filename, int *pcertlen); PEMChain*readcertchain(char *filename); /* aes_xts.c */ int aes_xts_encrypt(ulong tweak[], ulong ecb[], vlong sectorNumber, uchar *input, uchar *output, ulong len) ; int aes_xts_decrypt(ulong tweak[], ulong ecb[], vlong sectorNumber, uchar *input, uchar *output, ulong len); typedef struct ECpoint{ int inf; mpint *x; mpint *y; mpint *z; /* nil when using affine coordinates */ } ECpoint; typedef ECpoint ECpub; typedef struct ECpriv{ ECpoint; mpint *d; } ECpriv; typedef struct ECdomain{ mpint *p; mpint *a; mpint *b; ECpoint G; mpint *n; mpint *h; } ECdomain; void ecdominit(ECdomain *, void (*init)(mpint *p, mpint *a, mpint *b, mpint *x, mpint *y, mpint *n, mpint *h)); void ecdomfree(ECdomain *); void ecassign(ECdomain *, ECpoint *old, ECpoint *new); void ecadd(ECdomain *, ECpoint *a, ECpoint *b, ECpoint *s); void ecmul(ECdomain *, ECpoint *a, mpint *k, ECpoint *s); ECpoint* strtoec(ECdomain *, char *, char **, ECpoint *); ECpriv* ecgen(ECdomain *, ECpriv*); int ecverify(ECdomain *, ECpoint *); int ecpubverify(ECdomain *, ECpub *); void ecdsasign(ECdomain *, ECpriv *, uchar *, int, mpint *, mpint *); int ecdsaverify(ECdomain *, ECpub *, uchar *, int, mpint *, mpint *); void base58enc(uchar *, char *, int); int base58dec(char *, uchar *, int); ECpub* ecdecodepub(ECdomain *dom, uchar *, int); int ecencodepub(ECdomain *dom, ECpub *, uchar *, int); void ecpubfree(ECpub *); ECpub* X509toECpub(uchar *cert, int ncert, ECdomain *dom); char* X509ecdsaverifydigest(uchar *sig, int siglen, uchar *edigest, int edigestlen, ECdomain *dom, ECpub *pub); char* X509ecdsaverify(uchar *sig, int siglen, ECdomain *dom, ECpub *pub); /* curves */ void secp256r1(mpint *p, mpint *a, mpint *b, mpint *x, mpint *y, mpint *n, mpint *h); void secp256k1(mpint *p, mpint *a, mpint *b, mpint *x, mpint *y, mpint *n, mpint *h); void secp384r1(mpint *p, mpint *a, mpint *b, mpint *x, mpint *y, mpint *n, mpint *h); DigestState* ripemd160(uchar *, ulong, uchar *, DigestState *); /* * Diffie-Hellman key exchange */ typedef struct DHstate DHstate; struct DHstate { mpint *g; /* base g */ mpint *p; /* large prime */ mpint *q; /* subgroup prime */ mpint *x; /* random secret */ mpint *y; /* public key y = g**x % p */ }; /* generate new public key: y = g**x % p */ mpint* dh_new(DHstate *dh, mpint *p, mpint *q, mpint *g); /* calculate shared key: k = y**x % p */ mpint* dh_finish(DHstate *dh, mpint *y); /* Curve25519 elliptic curve, public key function */ void curve25519(uchar mypublic[32], uchar secret[32], uchar basepoint[32]); /* Curve25519 diffie hellman */ void curve25519_dh_new(uchar x[32], uchar y[32]); void curve25519_dh_finish(uchar x[32], uchar y[32], uchar z[32]); /* password-based key derivation function 2 (rfc2898) */ void pbkdf2_x(uchar *p, ulong plen, uchar *s, ulong slen, ulong rounds, uchar *d, ulong dlen, DigestState* (*x)(uchar*, ulong, uchar*, ulong, uchar*, DigestState*), int xlen); /* scrypt password-based key derivation function */ char* scrypt(uchar *p, ulong plen, uchar *s, ulong slen, ulong N, ulong R, ulong P, uchar *d, ulong dlen); /* hmac-based key derivation function (rfc5869) */ void hkdf_x(uchar *salt, ulong nsalt, uchar *info, ulong ninfo, uchar *key, ulong nkey, uchar *d, ulong dlen, DigestState* (*x)(uchar*, ulong, uchar*, ulong, uchar*, DigestState*), int xlen); /* timing safe memcmp() */ int tsmemcmp(void*, void*, ulong); #endif