Supported LMS Algorithms

LMS includes a various set of algorithms that are different by LM-OTS parameter (n, w, p, ls) and the LMS parameters itself (m, h).

Here you can find the actual set of LMS parameters and how they map to the enum.

Syntax

typedef enum
{
    LMOTS_SHA256_N32_W1 = 1,
    LMOTS_SHA256_N32_W2 = 2,
    LMOTS_SHA256_N32_W4 = 3,
    LMOTS_SHA256_N32_W8 = 4,
    LMOTS_SHA256_N24_W1 = 5,
    LMOTS_SHA256_N24_W2 = 6,
    LMOTS_SHA256_N24_W4 = 7,
    LMOTS_SHA256_N24_W8 = 8
} IppsLMOTSAlgo;

typedef enum
{
    LMS_SHA256_M32_H5  = 5,
    LMS_SHA256_M32_H10 = 6,
    LMS_SHA256_M32_H15 = 7,
    LMS_SHA256_M32_H20 = 8,
    LMS_SHA256_M32_H25 = 9,
    LMS_SHA256_M24_H5  = 10,
    LMS_SHA256_M24_H10 = 11,
    LMS_SHA256_M24_H15 = 12,
    LMS_SHA256_M24_H20 = 13,
    LMS_SHA256_M24_H25 = 14
} IppsLMSAlgo;

typedef struct {
    IppsLMOTSAlgo lmotsOIDAlgo;
    IppsLMSAlgo   lmsOIDAlgo;
} IppsLMSAlgoType;

Table of values for LM-OTS algorithms

Name	SHA Function	n	w	p	ls
LMOTS_SHA256_N32_W1	SHA2-256	32	1	265	7
LMOTS_SHA256_N32_W2	SHA2-256	32	2	133	6
LMOTS_SHA256_N32_W4	SHA2-256	32	4	67	4
LMOTS_SHA256_N32_W8	SHA2-256	32	8	34	0
LMOTS_SHA256_N24_W1	SHA2-256/192	24	1	200	8
LMOTS_SHA256_N24_W2	SHA2-256/192	24	2	101	6
LMOTS_SHA256_N24_W4	SHA2-256/192	24	4	51	4
LMOTS_SHA256_N24_W8	SHA2-256/192	24	8	26	0

Table of values for LMS algorithms

Name	SHA Function	m	h
LMS_SHA256_M32_H5	SHA2-256	32	5
LMS_SHA256_M32_H10	SHA2-256	32	10
LMS_SHA256_M32_H15	SHA2-256	32	15
LMS_SHA256_M32_H20	SHA2-256	32	20
LMS_SHA256_M32_H25	SHA2-256	32	25
LMS_SHA256_M24_H5	SHA2-256/192	24	5
LMS_SHA256_M24_H10	SHA2-256/192	24	10
LMS_SHA256_M24_H15	SHA2-256/192	24	15
LMS_SHA256_M24_H20	SHA2-256/192	24	20
LMS_SHA256_M24_H25	SHA2-256/192	24	25

Description

IppsLMSAlgoType is required to pass one value to LMS functions instead of passing all parameters for the LMS algorithm call.