diff --git a/README.md b/README.md
index 8e485f44..276c42a5 100644
--- a/README.md
+++ b/README.md
@@ -1925,6 +1925,35 @@ If it cannot, the compilation failed.
 Assuming 'ptr' is a pointer to a fieldType object which is stored within a structure of type 'type'
 at the position 'field', it returns a pointer to the structure.
 
+#### HASH Functions
+
+##### M\_HASH\_SEED --> size\_t
+
+User shall overwrite this macro by a random seed (of type size_t) before including
+the header m-core.h o that all hash functions will use this variable
+as a seed for the hash functions. If no user macro is defined,
+the default is to expand it to 0,
+making all hash computations predictible.
+
+##### M\_HASH\_DECL(hash)
+
+Declare and initialize a new hash computation, named 'hash' which
+is an integer.
+
+##### M\_HASH\_UP(hash, value)
+
+Update the 'hash' variable with the given 'value'
+by incorporating the 'value' within the 'hash'. 'value' can be up to a 'size_t' 
+variable.
+
+##### uint32_t m\_core\_hash (const void *str, size\_t length)
+
+Compute the hash of the binary representation of the data pointer by 'str'
+of length 'length'. 'str' shall have the same alignement restriction
+than an 'uint32_t'.
+
+#### METHOD Functions
+
 TODO: Document the API.
 
 ### M-MUTEX