diff --git a/library/psa_crypto.c b/library/psa_crypto.c
index 2658a13..5dd93af 100644
--- a/library/psa_crypto.c
+++ b/library/psa_crypto.c
@@ -2311,98 +2311,6 @@
 /* MAC */
 /****************************************************************/
 
-const mbedtls_cipher_info_t *mbedtls_cipher_info_from_psa(
-    psa_algorithm_t alg,
-    psa_key_type_t key_type,
-    size_t key_bits,
-    mbedtls_cipher_id_t* cipher_id )
-{
-    mbedtls_cipher_mode_t mode;
-    mbedtls_cipher_id_t cipher_id_tmp;
-
-    if( PSA_ALG_IS_AEAD( alg ) )
-        alg = PSA_ALG_AEAD_WITH_SHORTENED_TAG( alg, 0 );
-
-    if( PSA_ALG_IS_CIPHER( alg ) || PSA_ALG_IS_AEAD( alg ) )
-    {
-        switch( alg )
-        {
-            case PSA_ALG_STREAM_CIPHER:
-                mode = MBEDTLS_MODE_STREAM;
-                break;
-            case PSA_ALG_CTR:
-                mode = MBEDTLS_MODE_CTR;
-                break;
-            case PSA_ALG_CFB:
-                mode = MBEDTLS_MODE_CFB;
-                break;
-            case PSA_ALG_OFB:
-                mode = MBEDTLS_MODE_OFB;
-                break;
-            case PSA_ALG_ECB_NO_PADDING:
-                mode = MBEDTLS_MODE_ECB;
-                break;
-            case PSA_ALG_CBC_NO_PADDING:
-                mode = MBEDTLS_MODE_CBC;
-                break;
-            case PSA_ALG_CBC_PKCS7:
-                mode = MBEDTLS_MODE_CBC;
-                break;
-            case PSA_ALG_AEAD_WITH_SHORTENED_TAG( PSA_ALG_CCM, 0 ):
-                mode = MBEDTLS_MODE_CCM;
-                break;
-            case PSA_ALG_AEAD_WITH_SHORTENED_TAG( PSA_ALG_GCM, 0 ):
-                mode = MBEDTLS_MODE_GCM;
-                break;
-            case PSA_ALG_AEAD_WITH_SHORTENED_TAG( PSA_ALG_CHACHA20_POLY1305, 0 ):
-                mode = MBEDTLS_MODE_CHACHAPOLY;
-                break;
-            default:
-                return( NULL );
-        }
-    }
-    else if( alg == PSA_ALG_CMAC )
-        mode = MBEDTLS_MODE_ECB;
-    else
-        return( NULL );
-
-    switch( key_type )
-    {
-        case PSA_KEY_TYPE_AES:
-            cipher_id_tmp = MBEDTLS_CIPHER_ID_AES;
-            break;
-        case PSA_KEY_TYPE_DES:
-            /* key_bits is 64 for Single-DES, 128 for two-key Triple-DES,
-             * and 192 for three-key Triple-DES. */
-            if( key_bits == 64 )
-                cipher_id_tmp = MBEDTLS_CIPHER_ID_DES;
-            else
-                cipher_id_tmp = MBEDTLS_CIPHER_ID_3DES;
-            /* mbedtls doesn't recognize two-key Triple-DES as an algorithm,
-             * but two-key Triple-DES is functionally three-key Triple-DES
-             * with K1=K3, so that's how we present it to mbedtls. */
-            if( key_bits == 128 )
-                key_bits = 192;
-            break;
-        case PSA_KEY_TYPE_CAMELLIA:
-            cipher_id_tmp = MBEDTLS_CIPHER_ID_CAMELLIA;
-            break;
-        case PSA_KEY_TYPE_ARC4:
-            cipher_id_tmp = MBEDTLS_CIPHER_ID_ARC4;
-            break;
-        case PSA_KEY_TYPE_CHACHA20:
-            cipher_id_tmp = MBEDTLS_CIPHER_ID_CHACHA20;
-            break;
-        default:
-            return( NULL );
-    }
-    if( cipher_id != NULL )
-        *cipher_id = cipher_id_tmp;
-
-    return( mbedtls_cipher_info_from_values( cipher_id_tmp,
-                                             (int) key_bits, mode ) );
-}
-
 #if defined(MBEDTLS_PSA_BUILTIN_ALG_HMAC)
 static size_t psa_get_hash_block_size( psa_algorithm_t alg )
 {
diff --git a/library/psa_crypto_cipher.c b/library/psa_crypto_cipher.c
index ca91eaa..5440e45 100644
--- a/library/psa_crypto_cipher.c
+++ b/library/psa_crypto_cipher.c
@@ -55,6 +55,98 @@
 #define BUILTIN_KEY_TYPE_CHACHA20  1
 #endif
 
+const mbedtls_cipher_info_t *mbedtls_cipher_info_from_psa(
+    psa_algorithm_t alg,
+    psa_key_type_t key_type,
+    size_t key_bits,
+    mbedtls_cipher_id_t* cipher_id )
+{
+    mbedtls_cipher_mode_t mode;
+    mbedtls_cipher_id_t cipher_id_tmp;
+
+    if( PSA_ALG_IS_AEAD( alg ) )
+        alg = PSA_ALG_AEAD_WITH_SHORTENED_TAG( alg, 0 );
+
+    if( PSA_ALG_IS_CIPHER( alg ) || PSA_ALG_IS_AEAD( alg ) )
+    {
+        switch( alg )
+        {
+            case PSA_ALG_STREAM_CIPHER:
+                mode = MBEDTLS_MODE_STREAM;
+                break;
+            case PSA_ALG_CTR:
+                mode = MBEDTLS_MODE_CTR;
+                break;
+            case PSA_ALG_CFB:
+                mode = MBEDTLS_MODE_CFB;
+                break;
+            case PSA_ALG_OFB:
+                mode = MBEDTLS_MODE_OFB;
+                break;
+            case PSA_ALG_ECB_NO_PADDING:
+                mode = MBEDTLS_MODE_ECB;
+                break;
+            case PSA_ALG_CBC_NO_PADDING:
+                mode = MBEDTLS_MODE_CBC;
+                break;
+            case PSA_ALG_CBC_PKCS7:
+                mode = MBEDTLS_MODE_CBC;
+                break;
+            case PSA_ALG_AEAD_WITH_SHORTENED_TAG( PSA_ALG_CCM, 0 ):
+                mode = MBEDTLS_MODE_CCM;
+                break;
+            case PSA_ALG_AEAD_WITH_SHORTENED_TAG( PSA_ALG_GCM, 0 ):
+                mode = MBEDTLS_MODE_GCM;
+                break;
+            case PSA_ALG_AEAD_WITH_SHORTENED_TAG( PSA_ALG_CHACHA20_POLY1305, 0 ):
+                mode = MBEDTLS_MODE_CHACHAPOLY;
+                break;
+            default:
+                return( NULL );
+        }
+    }
+    else if( alg == PSA_ALG_CMAC )
+        mode = MBEDTLS_MODE_ECB;
+    else
+        return( NULL );
+
+    switch( key_type )
+    {
+        case PSA_KEY_TYPE_AES:
+            cipher_id_tmp = MBEDTLS_CIPHER_ID_AES;
+            break;
+        case PSA_KEY_TYPE_DES:
+            /* key_bits is 64 for Single-DES, 128 for two-key Triple-DES,
+             * and 192 for three-key Triple-DES. */
+            if( key_bits == 64 )
+                cipher_id_tmp = MBEDTLS_CIPHER_ID_DES;
+            else
+                cipher_id_tmp = MBEDTLS_CIPHER_ID_3DES;
+            /* mbedtls doesn't recognize two-key Triple-DES as an algorithm,
+             * but two-key Triple-DES is functionally three-key Triple-DES
+             * with K1=K3, so that's how we present it to mbedtls. */
+            if( key_bits == 128 )
+                key_bits = 192;
+            break;
+        case PSA_KEY_TYPE_CAMELLIA:
+            cipher_id_tmp = MBEDTLS_CIPHER_ID_CAMELLIA;
+            break;
+        case PSA_KEY_TYPE_ARC4:
+            cipher_id_tmp = MBEDTLS_CIPHER_ID_ARC4;
+            break;
+        case PSA_KEY_TYPE_CHACHA20:
+            cipher_id_tmp = MBEDTLS_CIPHER_ID_CHACHA20;
+            break;
+        default:
+            return( NULL );
+    }
+    if( cipher_id != NULL )
+        *cipher_id = cipher_id_tmp;
+
+    return( mbedtls_cipher_info_from_values( cipher_id_tmp,
+                                             (int) key_bits, mode ) );
+}
+
 #if defined(MBEDTLS_PSA_BUILTIN_CIPHER) || defined(PSA_CRYPTO_DRIVER_TEST)
 
 static psa_status_t cipher_setup(
diff --git a/library/psa_crypto_cipher.h b/library/psa_crypto_cipher.h
index cb85ee1..3130e8b 100644
--- a/library/psa_crypto_cipher.h
+++ b/library/psa_crypto_cipher.h
@@ -21,8 +21,25 @@
 #ifndef PSA_CRYPTO_CIPHER_H
 #define PSA_CRYPTO_CIPHER_H
 
+#include <mbedtls/cipher.h>
 #include <psa/crypto.h>
 
+/** Get Mbed TLS cipher information given the cipher algorithm PSA identifier
+ *  as well as the PSA type and size of the key to be used with the cipher
+ *  algorithm.
+ *
+ * \param       alg        PSA cipher algorithm identifier
+ * \param       key_type   PSA key type
+ * \param       key_bits   Size of the key in bits
+ * \param[out]  cipher_id  Mbed TLS cipher algorithm identifier
+ *
+ * \return  The Mbed TLS cipher information of the cipher algorithm.
+ *          \c NULL if the PSA cipher algorithm is not supported.
+ */
+const mbedtls_cipher_info_t *mbedtls_cipher_info_from_psa(
+    psa_algorithm_t alg, psa_key_type_t key_type, size_t key_bits,
+    mbedtls_cipher_id_t *cipher_id );
+
 /**
  * \brief Set the key for a multipart symmetric encryption operation.
  *
diff --git a/library/psa_crypto_core.h b/library/psa_crypto_core.h
index f949c71..ec7ac80 100644
--- a/library/psa_crypto_core.h
+++ b/library/psa_crypto_core.h
@@ -212,22 +212,6 @@
  */
 psa_status_t mbedtls_to_psa_error( int ret );
 
-/** Get Mbed TLS cipher information given the cipher algorithm PSA identifier
- *  as well as the PSA type and size of the key to be used with the cipher
- *  algorithm.
- *
- * \param       alg        PSA cipher algorithm identifier
- * \param       key_type   PSA key type
- * \param       key_bits   Size of the key in bits
- * \param[out]  cipher_id  Mbed TLS cipher algorithm identifier
- *
- * \return  The Mbed TLS cipher information of the cipher algorithm.
- *          \c NULL if the PSA cipher algorithm is not supported.
- */
-const mbedtls_cipher_info_t *mbedtls_cipher_info_from_psa(
-    psa_algorithm_t alg, psa_key_type_t key_type, size_t key_bits,
-    mbedtls_cipher_id_t *cipher_id );
-
 /** Import a key in binary format.
  *
  * \note The signature of this function is that of a PSA driver