kits/shared/md5.cpp

79 	(ctx->block[(n)] = \
85 	(ctx->block[(n)])
95 static const void *body(MD5_CTX *ctx, const void *data, unsigned long size)
103 	a = ctx->a;
104 	b = ctx->b;
105 	c = ctx->c;
106 	d = ctx->d;
194 	ctx->a = a;
195 	ctx->b = b;
196 	ctx->c = c;
197 	ctx->d = d;
202 void MD5_Init(MD5_CTX *ctx)
204 	ctx->a = 0x67452301;
205 	ctx->b = 0xefcdab89;
206 	ctx->c = 0x98badcfe;
207 	ctx->d = 0x10325476;
209 	ctx->lo = 0;
210 	ctx->hi = 0;
213 void MD5_Update(MD5_CTX *ctx, const void *data, unsigned long size)
218 	saved_lo = ctx->lo;
219 	if ((ctx->lo = (saved_lo + size) & 0x1fffffff) < saved_lo)
220 		ctx->hi++;
221 	ctx->hi += size >> 29;
229 			memcpy(&ctx->buffer[used], data, size);
233 		memcpy(&ctx->buffer[used], data, free);
236 		body(ctx, ctx->buffer, 64);
240 		data = body(ctx, data, size & ~(unsigned long)0x3f);
244 	memcpy(ctx->buffer, data, size);
247 void MD5_Final(unsigned char *result, MD5_CTX *ctx)
251 	used = ctx->lo & 0x3f;
253 	ctx->buffer[used++] = 0x80;
258 		memset(&ctx->buffer[used], 0, free);
259 		body(ctx, ctx->buffer, 64);
264 	memset(&ctx->buffer[used], 0, free - 8);
266 	ctx->lo <<= 3;
267 	ctx->buffer[56] = ctx->lo;
268 	ctx->buffer[57] = ctx->lo >> 8;
269 	ctx->buffer[58] = ctx->lo >> 16;
270 	ctx->buffer[59] = ctx->lo >> 24;
271 	ctx->buffer[60] = ctx->hi;
272 	ctx->buffer[61] = ctx->hi >> 8;
273 	ctx->buffer[62] = ctx->hi >> 16;
274 	ctx->buffer[63] = ctx->hi >> 24;
276 	body(ctx, ctx->buffer, 64);
278 	result[0] = ctx->a;
279 	result[1] = ctx->a >> 8;
280 	result[2] = ctx->a >> 16;
281 	result[3] = ctx->a >> 24;
282 	result[4] = ctx->b;
283 	result[5] = ctx->b >> 8;
284 	result[6] = ctx->b >> 16;
285 	result[7] = ctx->b >> 24;
286 	result[8] = ctx->c;
287 	result[9] = ctx->c >> 8;
288 	result[10] = ctx->c >> 16;
289 	result[11] = ctx->c >> 24;
290 	result[12] = ctx->d;
291 	result[13] = ctx->d >> 8;
292 	result[14] = ctx->d >> 16;
293 	result[15] = ctx->d >> 24;
295 	memset(ctx, 0, sizeof(*ctx));