HCC Crypto

Generate PKCS #10 Certificate Signing Request (CSR)

This tool generates a private and public key pair along with a certificate signing request (CSR). The private key is in PKCS#8 format and DER encoded. The CSR is in PKCS #10 format and DER encoded. The private key and CSR are zipped together into a single file for download. Warning: this private key and CSR should ONLY be used for test and development purposes.

Key Pair


Subject Name DNs

Type Value

Standard Extension Requests

Name Critical Value

Custom Extension Requests

OID Critical ASN.1 DER Encoded Data
* only decimals and numeric values allowed
* only decimals and numeric values allowed

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