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lib/md5: Export progressive APIs

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Export the MD5 hash init/update/finish progressive APIs
for better flexibility.

Signed-off-by: Chia-Wei Wang <chiawei_wang@aspeedtech.com>
This commit is contained in:
Chia-Wei Wang 2021-07-30 09:08:02 +08:00 • committed by Tom Rini
parent fe68a67a5f
commit 74bda4fe3d
2 changed files with 7 additions and 3 deletions
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4
include/u-boot/md5.h
View file

@ -17,6 +17,10 @@ struct MD5Context {
}; };
}; };
void MD5Init(struct MD5Context *ctx);
void MD5Update(struct MD5Context *ctx, unsigned char const *buf, unsigned len);
void MD5Final(unsigned char digest[16], struct MD5Context *ctx);
/* /*
* Calculate and store in 'output' the MD5 digest of 'len' bytes at * Calculate and store in 'output' the MD5 digest of 'len' bytes at
* 'input'. 'output' must have enough space to hold 16 bytes. * 'input'. 'output' must have enough space to hold 16 bytes.

6
lib/md5.c
View file

@ -55,7 +55,7 @@ byteReverse(unsigned char *buf, unsigned longs)
* Start MD5 accumulation. Set bit count to 0 and buffer to mysterious * Start MD5 accumulation. Set bit count to 0 and buffer to mysterious
* initialization constants. * initialization constants.
*/ */
static void void
MD5Init(struct MD5Context *ctx) MD5Init(struct MD5Context *ctx)
{ {
ctx->buf[0] = 0x67452301; ctx->buf[0] = 0x67452301;
@ -71,7 +71,7 @@ MD5Init(struct MD5Context *ctx)
* Update context to reflect the concatenation of another buffer full * Update context to reflect the concatenation of another buffer full
* of bytes. * of bytes.
*/ */
static void void
MD5Update(struct MD5Context *ctx, unsigned char const *buf, unsigned len) MD5Update(struct MD5Context *ctx, unsigned char const *buf, unsigned len)
{ {
register __u32 t; register __u32 t;
@ -120,7 +120,7 @@ MD5Update(struct MD5Context *ctx, unsigned char const *buf, unsigned len)
* Final wrapup - pad to 64-byte boundary with the bit pattern * Final wrapup - pad to 64-byte boundary with the bit pattern
* 1 0* (64-bit count of bits processed, MSB-first) * 1 0* (64-bit count of bits processed, MSB-first)
*/ */
static void void
MD5Final(unsigned char digest[16], struct MD5Context *ctx) MD5Final(unsigned char digest[16], struct MD5Context *ctx)
{ {
unsigned int count; unsigned int count;