diff --git a/include/mbedtls/md2.h b/include/mbedtls/md2.h
index 8d01266..151a8f4 100644
--- a/include/mbedtls/md2.h
+++ b/include/mbedtls/md2.h
@@ -67,6 +67,15 @@
 void mbedtls_md2_free( mbedtls_md2_context *ctx );
 
 /**
+ * \brief          Clone (the state of) an MD2 context
+ *
+ * \param dst      The destination context
+ * \param src      The context to be cloned
+ */
+void mbedtls_md2_clone( mbedtls_md2_context *dst,
+                        const mbedtls_md2_context *src );
+
+/**
  * \brief          MD2 context setup
  *
  * \param ctx      context to be initialized
diff --git a/include/mbedtls/md4.h b/include/mbedtls/md4.h
index 96dcc44..fd756b9 100644
--- a/include/mbedtls/md4.h
+++ b/include/mbedtls/md4.h
@@ -67,6 +67,15 @@
 void mbedtls_md4_free( mbedtls_md4_context *ctx );
 
 /**
+ * \brief          Clone (the state of) an MD4 context
+ *
+ * \param dst      The destination context
+ * \param src      The context to be cloned
+ */
+void mbedtls_md4_clone( mbedtls_md4_context *dst,
+                        const mbedtls_md4_context *src );
+
+/**
  * \brief          MD4 context setup
  *
  * \param ctx      context to be initialized
diff --git a/include/mbedtls/md5.h b/include/mbedtls/md5.h
index 163780a..40273d4 100644
--- a/include/mbedtls/md5.h
+++ b/include/mbedtls/md5.h
@@ -67,6 +67,15 @@
 void mbedtls_md5_free( mbedtls_md5_context *ctx );
 
 /**
+ * \brief          Clone (the state of) an MD5 context
+ *
+ * \param dst      The destination context
+ * \param src      The context to be cloned
+ */
+void mbedtls_md5_clone( mbedtls_md5_context *dst,
+                        const mbedtls_md5_context *src );
+
+/**
  * \brief          MD5 context setup
  *
  * \param ctx      context to be initialized
diff --git a/include/mbedtls/ripemd160.h b/include/mbedtls/ripemd160.h
index e66c46a..9013f20 100644
--- a/include/mbedtls/ripemd160.h
+++ b/include/mbedtls/ripemd160.h
@@ -67,6 +67,15 @@
 void mbedtls_ripemd160_free( mbedtls_ripemd160_context *ctx );
 
 /**
+ * \brief          Clone (the state of) an RIPEMD-160 context
+ *
+ * \param dst      The destination context
+ * \param src      The context to be cloned
+ */
+void mbedtls_ripemd160_clone( mbedtls_ripemd160_context *dst,
+                        const mbedtls_ripemd160_context *src );
+
+/**
  * \brief          RIPEMD-160 context setup
  *
  * \param ctx      context to be initialized
diff --git a/include/mbedtls/sha1.h b/include/mbedtls/sha1.h
index 74fb855..e8bd65e 100644
--- a/include/mbedtls/sha1.h
+++ b/include/mbedtls/sha1.h
@@ -67,6 +67,15 @@
 void mbedtls_sha1_free( mbedtls_sha1_context *ctx );
 
 /**
+ * \brief          Clone (the state of) a SHA-1 context
+ *
+ * \param dst      The destination context
+ * \param src      The context to be cloned
+ */
+void mbedtls_sha1_clone( mbedtls_sha1_context *dst,
+                         const mbedtls_sha1_context *src );
+
+/**
  * \brief          SHA-1 context setup
  *
  * \param ctx      context to be initialized
diff --git a/include/mbedtls/sha256.h b/include/mbedtls/sha256.h
index 113c23b..0dbc4b2 100644
--- a/include/mbedtls/sha256.h
+++ b/include/mbedtls/sha256.h
@@ -68,6 +68,15 @@
 void mbedtls_sha256_free( mbedtls_sha256_context *ctx );
 
 /**
+ * \brief          Clone (the state of) a SHA-256 context
+ *
+ * \param dst      The destination context
+ * \param src      The context to be cloned
+ */
+void mbedtls_sha256_clone( mbedtls_sha256_context *dst,
+                           const mbedtls_sha256_context *src );
+
+/**
  * \brief          SHA-256 context setup
  *
  * \param ctx      context to be initialized
diff --git a/include/mbedtls/sha512.h b/include/mbedtls/sha512.h
index 6b09a48..7e1bc1e 100644
--- a/include/mbedtls/sha512.h
+++ b/include/mbedtls/sha512.h
@@ -68,6 +68,15 @@
 void mbedtls_sha512_free( mbedtls_sha512_context *ctx );
 
 /**
+ * \brief          Clone (the state of) a SHA-512 context
+ *
+ * \param dst      The destination context
+ * \param src      The context to be cloned
+ */
+void mbedtls_sha512_clone( mbedtls_sha512_context *dst,
+                           const mbedtls_sha512_context *src );
+
+/**
  * \brief          SHA-512 context setup
  *
  * \param ctx      context to be initialized