Add signature length to the invalid signature error message when converting from an ECDSA signature in IEEE 1363 encoding to DER encoding.
Add signature length to the invalid signature error message when converting from an ECDSA signature in IEEE 1363 encoding to DER encoding.

PiperOrigin-RevId: 245071238
GitOrigin-RevId: efc4780993aef4a02b0dbf97db36f2964155087b

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