+
+void cipher_benchmark(BlockCipher *c, const char *cname, int numbytes)
+{
+ memset(buf, 0x12, sizeof(buf));
+
+ ASSERT(sizeof(buf) >= cipher_key_len(c));
+ cipher_set_key(c, buf);
+
+ uint8_t iv[cipher_block_len(c)];
+ memset(iv, 0, sizeof(iv));
+
+ ticks_t t = timer_clock();
+ enum { CYCLES = 64 };
+
+ for (int j=0;j<CYCLES;++j)
+ {
+ cipher_cbc_begin(c, iv);
+ int numblocks = (numbytes / cipher_block_len(c)) + 1;
+ for (int i=0; i<numblocks; ++i)
+ cipher_cbc_encrypt(c, buf);
+ }
+
+ t = timer_clock() - t;
+
+ utime_t usec = ticks_to_us(t) / CYCLES;
+ kprintf("%s @ %ldMhz: Encryption with %s-CBC of %d bytes: %lu.%lu ms\n",
+ CPU_CORE_NAME, CPU_FREQ/1000000,
+ cname, numbytes,
+ (usec/1000), (usec % 1000));
+}