des_encrypt_blk, des_decrypt_blk,
8, "single-DES CBC"
};
+
+#ifdef TEST_XDM_AUTH
+
+/*
+ * Small standalone utility which allows encryption and decryption of
+ * single cipher blocks in the XDM-AUTHORIZATION-1 style. Written
+ * during the rework of X authorisation for connection sharing, to
+ * check the corner case when xa1_firstblock matches but the rest of
+ * the authorisation is bogus.
+ *
+ * Just compile this file on its own with the above ifdef symbol
+ * predefined:
+
+gcc -DTEST_XDM_AUTH -o sshdes sshdes.c
+
+ */
+
+#include <stdlib.h>
+void *safemalloc(size_t n, size_t size) { return calloc(n, size); }
+void safefree(void *p) { return free(p); }
+void smemclr(void *p, size_t size) { memset(p, 0, size); }
+int main(int argc, char **argv)
+{
+ unsigned char words[2][8];
+ unsigned char out[8];
+ int i, j;
+
+ memset(words, 0, sizeof(words));
+
+ for (i = 0; i < 2; i++) {
+ for (j = 0; j < 8 && argv[i+1][2*j]; j++) {
+ char x[3];
+ unsigned u;
+ x[0] = argv[i+1][2*j];
+ x[1] = argv[i+1][2*j+1];
+ x[2] = 0;
+ sscanf(x, "%02x", &u);
+ words[i][j] = u;
+ }
+ }
+
+ memcpy(out, words[0], 8);
+ des_decrypt_xdmauth(words[1], out, 8);
+ printf("decrypt(%s,%s) = ", argv[1], argv[2]);
+ for (i = 0; i < 8; i++) printf("%02x", out[i]);
+ printf("\n");
+
+ memcpy(out, words[0], 8);
+ des_encrypt_xdmauth(words[1], out, 8);
+ printf("encrypt(%s,%s) = ", argv[1], argv[2]);
+ for (i = 0; i < 8; i++) printf("%02x", out[i]);
+ printf("\n");
+}
+
+#endif