50 	    size_t block_size, uint8_t *iv,  in cfb_encrypt()  argument
57   TMP_ALLOC(buffer, block_size);  in cfb_encrypt()
61 …for (p = iv; length >= block_size; p = dst, dst += block_size, src += block_size, length -= block_…  in cfb_encrypt()
63 	  f(ctx, block_size, dst, p);  in cfb_encrypt()
64 	  memxor(dst, src, block_size);  in cfb_encrypt()
69 …for (p = iv; length >= block_size; p = dst, dst += block_size, src += block_size, length -= block_…  in cfb_encrypt()
71 	  f(ctx, block_size, buffer, p);  in cfb_encrypt()
72 	  memxor(dst, buffer, block_size);  in cfb_encrypt()
77     memcpy(iv, p, block_size);  in cfb_encrypt()
81       f(ctx, block_size, buffer, iv);  in cfb_encrypt()
93 	    size_t block_size, uint8_t *iv,  in cfb_decrypt()  argument
99       size_t left = length % block_size;  in cfb_decrypt()
105 	  f(ctx, block_size, dst, iv);  in cfb_decrypt()
106 	  f(ctx, length - block_size, dst + block_size, src);  in cfb_decrypt()
107 	  memcpy(iv, src + length - block_size, block_size);  in cfb_decrypt()
114 	  TMP_ALLOC(buffer, block_size);  in cfb_decrypt()
116 	  f(ctx, block_size, buffer, iv);  in cfb_decrypt()
134       buffer_size = CFB_BUFFER_LIMIT - (CFB_BUFFER_LIMIT % block_size);  in cfb_decrypt()
137       TMP_ALLOC(initial_iv, block_size);  in cfb_decrypt()
139       left = length % block_size;  in cfb_decrypt()
149 	  f(ctx, block_size, buffer, iv);  in cfb_decrypt()
150 	  f(ctx, part - block_size, buffer + block_size, dst);  in cfb_decrypt()
151 	  memcpy(iv, dst + part - block_size, block_size);  in cfb_decrypt()
160 	  f(ctx, block_size, buffer, iv);  in cfb_decrypt()
170 	     size_t block_size, uint8_t *iv,  in cfb8_encrypt()  argument
176   TMP_ALLOC(buffer, block_size * 2);  in cfb8_encrypt()
177   TMP_ALLOC(outbuf, block_size);  in cfb8_encrypt()
180   memcpy(buffer, iv, block_size);  in cfb8_encrypt()
186       if (pos == block_size)  in cfb8_encrypt()
188 	  memcpy(buffer, buffer + block_size, block_size);  in cfb8_encrypt()
192       f(ctx, block_size, outbuf, buffer + pos);  in cfb8_encrypt()
194       buffer[pos + block_size] = t;  in cfb8_encrypt()
198   memcpy(iv, buffer + pos, block_size);  in cfb8_encrypt()
203 	     size_t block_size, uint8_t *iv,  in cfb8_decrypt()  argument
209   TMP_ALLOC(buffer, block_size * 2);  in cfb8_decrypt()
210   TMP_ALLOC(outbuf, block_size * 2);  in cfb8_decrypt()
213   memcpy(buffer, iv, block_size);  in cfb8_decrypt()
214   memcpy(buffer + block_size, src,  in cfb8_decrypt()
215 	 length < block_size ? length : block_size);  in cfb8_decrypt()
220       for (i = 0; i < length && i < block_size; i++)  in cfb8_decrypt()
221 	f(ctx, block_size, outbuf + i, buffer + i);  in cfb8_decrypt()
229       if (i == block_size)  in cfb8_decrypt()
231 	  memcpy(buffer, buffer + block_size, block_size);  in cfb8_decrypt()
232 	  memcpy(buffer + block_size, src,  in cfb8_decrypt()
233 		 length < block_size ? length : block_size);  in cfb8_decrypt()
237   memcpy(iv, buffer + i, block_size);  in cfb8_decrypt()