Developer Guide and Reference for Intel® Cryptography Primitives Library
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Initialize XMSS Signature State
Syntax
IppStatus ippsXMSSInitSignature (IppsXMSSAlgo OIDAlgo, IppsXMSSSignatureState* pSign);
Include Files
ippcp.h
Parameters
OIDAlgo |
XMSS Algorithm ID. It defines a set of XMSS parameters. See Supported XMSS Algorithms for more information. |
pSign |
Pointer to the IppsXMSSSignatureState context. Size is greater or equal to the value returned by ippsXMSSSignatureStateGetSize. |
Description
This function initializes the XMSS signature state. The scheme of the signature is shown below:
+---------------------------------+
| |
| index idx_sig | 4 bytes
| |
+---------------------------------+
| |
| randomness r | n bytes
| |
+---------------------------------+
| |
| WOTS+ signature sig_ots | len * n bytes
| |
+---------------------------------+
| |
| authorization path | h * n bytes
| |
+---------------------------------+
n, len are WOTS+ parameters, h is the XMSS tree height.
Important
This is a Preview Feature. You need to enable the IPPCP_PREVIEW_XMSS macro to use the feature.Return Values
ippStsNoErr |
Indicates no error. All single operations executed without errors. Any other value indicates an error or warning. |
ippStsNullPtrErr |
pSign is a NULL pointer. |
ippStsBadArgErr |
OIDAlgo < 1 or OIDAlgo > the maximum value for IppsXMSSAlgo. |