38 int rc4_start(prng_state *prng)  in rc4_start()  argument
40     LTC_ARGCHK(prng != NULL);  in rc4_start()
43     prng->rc4.x = 0;  in rc4_start()
55 int rc4_add_entropy(const unsigned char *in, unsigned long inlen, prng_state *prng)  in rc4_add_entropy()  argument
58     LTC_ARGCHK(prng != NULL);  in rc4_add_entropy()
61     if (prng->rc4.x + inlen > 256) {  in rc4_add_entropy()
62        if (prng->rc4.x == 256) {  in rc4_add_entropy()
67           inlen = 256 - prng->rc4.x;  in rc4_add_entropy()
72        prng->rc4.buf[prng->rc4.x++] = *in++;  in rc4_add_entropy()
84 int rc4_ready(prng_state *prng)  in rc4_ready()  argument
89     LTC_ARGCHK(prng != NULL);  in rc4_ready()
92     s = prng->rc4.buf;  in rc4_ready()
94     keylen = prng->rc4.x;  in rc4_ready()
102         y = (y + prng->rc4.buf[x] + key[j++]) & 255;  in rc4_ready()
108     prng->rc4.x = 0;  in rc4_ready()
109     prng->rc4.y = 0;  in rc4_ready()
125 unsigned long rc4_read(unsigned char *out, unsigned long outlen, prng_state *prng)  in rc4_read()  argument
131    LTC_ARGCHK(prng != NULL);  in rc4_read()
138    x = prng->rc4.x;  in rc4_read()
139    y = prng->rc4.y;  in rc4_read()
140    s = prng->rc4.buf;  in rc4_read()
148    prng->rc4.x = x;  in rc4_read()
149    prng->rc4.y = y;  in rc4_read()
158 int rc4_done(prng_state *prng)  in rc4_done()  argument
160    LTC_ARGCHK(prng != NULL);  in rc4_done()
171 int rc4_export(unsigned char *out, unsigned long *outlen, prng_state *prng)  in rc4_export()  argument
175    LTC_ARGCHK(prng   != NULL);  in rc4_export()
182    if (rc4_read(out, 32, prng) != 32) {  in rc4_export()
197 int rc4_import(const unsigned char *in, unsigned long inlen, prng_state *prng)  in rc4_import()  argument
201    LTC_ARGCHK(prng != NULL);  in rc4_import()
207    if ((err = rc4_start(prng)) != CRYPT_OK) {  in rc4_import()
210    return rc4_add_entropy(in, 32, prng);  in rc4_import()
231    prng_state prng;  in rc4_test()
236        if ((err = rc4_start(&prng)) != CRYPT_OK) {  in rc4_test()
239        if ((err = rc4_add_entropy(tests[x].key, 8, &prng)) != CRYPT_OK) {  in rc4_test()
242        if ((err = rc4_ready(&prng)) != CRYPT_OK) {  in rc4_test()
246        if (rc4_read(dst, 8, &prng) != 8) {  in rc4_test()
249        rc4_done(&prng);  in rc4_test()