Fix java 15-18 ECDSA vulnerability. #1996
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Add missing check of signatures's R and S after successful signature verification. Applies only to DTLS, not TLS. TLS requires a fixed JCE! The fixed x509 certificate path validation is executed by the CertPathUtil. If other implementations are used, the Asn1DerDecoder.checkCertificateChain must be called there. Signed-off-by: Achim Kraus <achim.kraus@bosch.io>
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Add missing check of R and S after successful signature verification.
Applies only to DTLS, not TLS. TLS requires a fixed JCE!
Signed-off-by: Achim Kraus achim.kraus@bosch.io