Invalid signature in ECC-signed x.509 certificate

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i've installed x.509 self-signed certificate local machine trca store on windows 7 sp1 updates applied. in "certmgr" i've seen "this certificate has invalid digital signature". certificate signature algorithm "sha1ecdsa" wich must supported cng on nt 6.x. why i've got problem that?

a confirmation, ms os supports these elliptic curve algortithms:
ecdh_p256, ecdh_p384, ecdh_p521, ecdsa_p256, ecdsa_p384, ecdsa_p521

regards

diana

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Windows Server  >  Security



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