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to_der

        # OpenSSL::ASN1::ASN1Data.to_der

(from ruby core)
### Implementation from ASN1Data
---
    asn1.to_der => DER-encoded String

---

Encodes this ASN1Data into a DER-encoded String value. The result is
DER-encoded except for the possibility of indefinite length forms.
Indefinite length forms are not allowed in strict DER, so strictly
speaking the result of such an encoding would be a BER-encoding.



      

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