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recover_pk: some more

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This commit is contained in:
Philippe Teuwen 2020-12-11 14:34:10 +01:00
parent c281895e8f
commit ac1081fdfb
1 changed files with 21 additions and 4 deletions
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25
tools/recover_pk.py
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@ -199,6 +199,18 @@ CURVES = {
0xCF5AC8395BAFEB13C02DA292DDED7A83
)
),
# ! h=4, how to handle that?
"secp128r2": (
707,
0xFFFFFFFDFFFFFFFFFFFFFFFFFFFFFFFF,
0x3FFFFFFF7FFFFFFFBE0024720613B5A3,
0xD6031998D1B3BBFEBF59CC9BBFF9AEE1,
0x5EEEFCA380D02919DC2C6558BB6D8A5D,
(
0x7B6AA5D85E572983E6FB32A7CDEBC140,
0x27B6916A894D3AEE7106FE805FC34B44
)
),
"secp192k1": (
711,
0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFEE37,
@ -210,6 +222,7 @@ CURVES = {
0x9B2F2F6D9C5628A7844163D015BE86344082AA88D95E2F9D
)
),
# p192
"secp192r1": (
409,
0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFF,
@ -232,6 +245,7 @@ CURVES = {
0x7E089FED7FBA344282CAFBD6F7E319F7C0B0BD59E2CA4BDB556D61A5
)
),
# p224
"secp224r1": (
713,
0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF000000000000000000000001,
@ -254,7 +268,7 @@ CURVES = {
0x483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8
)
),
## openssl uses the name: prime256v1.
# p256, openssl uses the name: prime256v1.
"secp256r1": (
415,
0xFFFFFFFF00000001000000000000000000000000FFFFFFFFFFFFFFFFFFFFFFFF,
@ -266,6 +280,7 @@ CURVES = {
0x4FE342E2FE1A7F9B8EE7EB4A7C0F9E162BCE33576B315ECECBB6406837BF51F5
)
),
# p384
"secp384r1": (
715,
0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFF0000000000000000FFFFFFFF,
@ -367,6 +382,8 @@ class EllipticCurve:
return data
elif callable(hash):
return hash(data)
elif hash == "md5":
return hashlib.md5(data).digest()
elif hash == "sha1":
return hashlib.sha1(data).digest()
elif hash == "sha256":
@ -381,7 +398,7 @@ class EllipticCurve:
def guess_curvename(signature):
l = (len(signature) // 2) & 0xfe
if l == 32 :
curves = [ "secp128r1" ]
curves = [ "secp128r1", "secp128r2" ]
elif l == 48:
curves = [ "secp192k1", "secp192r1" ]
elif l == 56:
@ -501,7 +518,7 @@ def selftests():
curvenames = guess_curvename(t['samples'][1])
recovered = set()
for c in curvenames:
for h in [None, "sha1", "sha256", "sha512"]:
for h in [None, "md5", "sha1", "sha256", "sha512"]:
recovered |= recover_multiple(t['samples'][::2], t['samples'][1::2], c, alghash=h)
if (len(recovered) == 1):
pk = recovered.pop()
@ -536,7 +553,7 @@ if __name__ == "__main__":
for c in curvenames:
print("\nAssuming curve=%s" % c)
print("========================")
for h in [None, "sha1", "sha256", "sha512"]:
for h in [None, "md5", "sha1", "sha256", "sha512"]:
print("Assuming hash=%s" % h)
recovered = recover_multiple(uids, sigs, c, alghash=h)
if recovered: