Constify RSA signature buffer.
diff --git a/fips/fips.h b/fips/fips.h
index 2fa56db..4bebd4c 100644
--- a/fips/fips.h
+++ b/fips/fips.h
@@ -190,13 +190,13 @@
int FIPS_rsa_verify_ctx(struct rsa_st *rsa, struct env_md_ctx_st *ctx,
int rsa_pad_mode, int saltlen,
const struct env_md_st *mgf1Hash,
- unsigned char *sigbuf, unsigned int siglen);
+ const unsigned char *sigbuf, unsigned int siglen);
int FIPS_rsa_verify_digest(struct rsa_st *rsa,
const unsigned char *dig, int diglen,
const struct env_md_st *mhash,
int rsa_pad_mode, int saltlen,
const struct env_md_st *mgf1Hash,
- unsigned char *sigbuf, unsigned int siglen);
+ const unsigned char *sigbuf, unsigned int siglen);
#ifndef OPENSSL_FIPSCANISTER
