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Add SM2 curve support #4

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Merged
serengil merged 1 commit into from
Oct 27, 2025
Merged

Add SM2 curve support #4

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11 changes: 11 additions & 0 deletions lightecc/curves/weierstrass.py
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Original file line number Diff line number Diff line change
Expand Up @@ -928,6 +928,17 @@ class EccFrog512CK2(WeierstrassInterface):
n = 9149012705592502490164965176888130701548053918699793689672344807772801105830557269123255850915745063541133157503707284048429261692283957712127567713136519


class SM2(WeierstrassInterface):
a = 0xFFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00000000FFFFFFFFFFFFFFFC
b = 0x28E9FA9E9D9F5E344D5A9E4BCF6509A7F39789F515AB8F92DDBCBD414D940E93
p = 0xFFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00000000FFFFFFFFFFFFFFFF
G = (
0x32C4AE2C1F1981195F9904466A39C9948FE30BBFF2660BE1715A4589334C74C7,
0xBC3736A2F4F6779C59BDCEE36B692153D0A9877CC62A474002DF32E52139F0A0,
)
n = 0xFFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFF7203DF6B21C6052B53BBF40939D54123


class Test_Curve(WeierstrassInterface):
"""
koclab.cs.ucsb.edu/teaching/ccs130h/2018/04ecc.pdf
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