diff --git a/library/hash_info.c b/library/hash_info.c
index 783fb2642..8daa4d0bc 100644
--- a/library/hash_info.c
+++ b/library/hash_info.c
@@ -55,18 +55,6 @@ static const hash_entry hash_table[] = {
     { PSA_ALG_NONE, MBEDTLS_MD_NONE, 0, 0 },
 };
 
-/* Get block size from MD type */
-unsigned char mbedtls_hash_info_get_block_size(mbedtls_md_type_t md_type)
-{
-    const hash_entry *entry = hash_table;
-    while (entry->md_type != MBEDTLS_MD_NONE &&
-           entry->md_type != md_type) {
-        entry++;
-    }
-
-    return entry->block_size;
-}
-
 /* Get PSA from MD */
 psa_algorithm_t mbedtls_hash_info_psa_from_md(mbedtls_md_type_t md_type)
 {
diff --git a/library/hash_info.h b/library/hash_info.h
index 84d3d7143..1dd206e70 100644
--- a/library/hash_info.h
+++ b/library/hash_info.h
@@ -36,17 +36,6 @@
 #include "psa/crypto.h"
 #include "mbedtls/platform_util.h"
 
-/** Get the block size of the given hash type from its MD type.
- *
- * \note To get the output length from the PSA alg, use
- *       \c PSA_HASH_BLOCK_LENGTH().
- *
- * \param md_type   The hash MD type.
- *
- * \return          The block size in bytes, or 0 if not known.
- */
-unsigned char mbedtls_hash_info_get_block_size(mbedtls_md_type_t md_type);
-
 /** Get the PSA alg from the MD type.
  *
  * \param md_type   The hash MD type.