Improved performance on dedicated P-256/i15 EC implementation.

[BearSSL] / src / x509 / x509_decoder.c

diff --git a/src/x509/x509_decoder.c b/src/x509/x509_decoder.c
index d81bba2..64a7996 100644 (file)
--- a/src/x509/x509_decoder.c
+++ b/src/x509/x509_decoder.c
@@ -238,7 +238,7 @@ static const uint8_t t0_codeblock[] = {
        0x1A, 0x02, 0x00, 0x02, 0x01, 0x0A, 0x00, 0x01, 0x72, 0x1B, 0x01, 0x81,
        0x00, 0x0D, 0x06, 0x01, 0x00, 0x01, 0x81, 0x00, 0x0A, 0x1B, 0x05, 0x02,
        0x31, 0x1D, 0x03, 0x00, 0x01, 0x00, 0x02, 0x00, 0x01, 0x00, 0x12, 0x06,
-       0x19, 0x02, 0x00, 0x2A, 0x03, 0x00, 0x1B, 0x01, 0x87, 0xFF, 0xFF, 0x7F,
+       0x19, 0x02, 0x00, 0x2A, 0x03, 0x00, 0x1B, 0x01, 0x83, 0xFF, 0xFF, 0x7F,
        0x12, 0x06, 0x02, 0x32, 0x1D, 0x01, 0x08, 0x0E, 0x26, 0x72, 0x23, 0x09,
        0x04, 0x60, 0x00, 0x00, 0x6A, 0x5E, 0x00, 0x00, 0x6B, 0x7A, 0x00, 0x00,
        0x70, 0x4E, 0x6B, 0x00, 0x01, 0x6B, 0x1B, 0x05, 0x02, 0x36, 0x1D, 0x72,
@@ -372,6 +372,8 @@ name(void *ctx) \
 
 T0_DEFENTRY(br_x509_decoder_init_main, 92)
 
+#define T0_NEXT(t0ipp)   (*(*(t0ipp)) ++)
+
 void
 br_x509_decoder_run(void *t0ctx)
 {
@@ -419,15 +421,17 @@ br_x509_decoder_run(void *t0ctx)
 #define T0_CO()         do { \
        goto t0_exit; \
 } while (0)
-#define T0_RET()        break
+#define T0_RET()        goto t0_next
 
        dp = ((t0_context *)t0ctx)->dp;
        rp = ((t0_context *)t0ctx)->rp;
        ip = ((t0_context *)t0ctx)->ip;
+       goto t0_next;
        for (;;) {
                uint32_t t0x;
 
-               t0x = t0_parse7E_unsigned(&ip);
+       t0_next:
+               t0x = T0_NEXT(&ip);
                if (t0x < T0_INTERPRETED) {
                        switch (t0x) {
                                int32_t t0off;