Define EC curve family constants
Define constants for ECC curve families and DH group families. These
constants have 0x0000 in the lower 16 bits of the key type.
Support these constants in the implementation and in the PSA metadata
tests.
Switch the slot management and secure element driver HAL tests to the
new curve encodings. This requires SE driver code to become slightly
more clever when figuring out the bit-size of an imported EC key since
it now needs to take the data size into account.
Switch some documentation to the new encodings.
Remove the macro PSA_ECC_CURVE_BITS which can no longer be implemented.
diff --git a/include/psa/crypto.h b/include/psa/crypto.h
index 07be2b9..2b07b74 100644
--- a/include/psa/crypto.h
+++ b/include/psa/crypto.h
@@ -3502,10 +3502,10 @@
* length is determined by the curve, and sets the mandatory bits
* accordingly. That is:
*
- * - #PSA_ECC_CURVE_CURVE25519: draw a 32-byte string
- * and process it as specified in RFC 7748 §5.
- * - #PSA_ECC_CURVE_CURVE448: draw a 56-byte string
- * and process it as specified in RFC 7748 §5.
+ * - Curve25519 (#PSA_ECC_CURVE_MONTGOMERY, 255 bits): draw a 32-byte
+ * string and process it as specified in RFC 7748 §5.
+ * - Curve448 (#PSA_ECC_CURVE_MONTGOMERY, 448 bits): draw a 56-byte
+ * string and process it as specified in RFC 7748 §5.
*
* - For key types for which the key is represented by a single sequence of
* \p bits bits with constraints as to which bit sequences are acceptable,