OSSL_CRMF_MSG_GET0_TMPL(3ossl)

📦 version 3.5.0, in opensuse-leap 16.0

👑 OSSL_CRMF_MSG_GET0_TMPL 👑

okay so welcome to the 3ossl manual page, bestie 💅 — this one is all about the little CRMF functions that read stuff out of CertReqMsg structures, no cap.

🌸 NAME 🌸

this whole squad is about functions reading from CRMF CertReqMsg structures. Meet the lineup:

  • OSSL_CRMF_MSG_get0_tmpl
  • OSSL_CRMF_CERTTEMPLATE_get0_publicKey
  • OSSL_CRMF_CERTTEMPLATE_get0_subject
  • OSSL_CRMF_CERTTEMPLATE_get0_issuer
  • OSSL_CRMF_CERTTEMPLATE_get0_serialNumber
  • OSSL_CRMF_CERTTEMPLATE_get0_extensions
  • OSSL_CRMF_CERTID_get0_serialNumber
  • OSSL_CRMF_CERTID_get0_issuer
  • OSSL_CRMF_ENCRYPTEDKEY_get1_encCert
  • OSSL_CRMF_ENCRYPTEDKEY_get1_pkey
  • OSSL_CRMF_ENCRYPTEDKEY_init_envdata
  • OSSL_CRMF_ENCRYPTEDVALUE_decrypt
  • OSSL_CRMF_ENCRYPTEDVALUE_get1_encCert
  • OSSL_CRMF_MSG_get_certReqId
  • OSSL_CRMF_MSG_centralkeygen_requested

✨ SYNOPSIS ✨

include this header first, bestie:

        #include <openssl/crmf.h>

        OSSL_CRMF_CERTTEMPLATE *OSSL_CRMF_MSG_get0_tmpl(const OSSL_CRMF_MSG *crm);
        X509_PUBKEY
        *OSSL_CRMF_CERTTEMPLATE_get0_publicKey(const OSSL_CRMF_CERTTEMPLATE *tmpl);
        const X509_NAME
        *OSSL_CRMF_CERTTEMPLATE_get0_subject(const OSSL_CRMF_CERTTEMPLATE *tmpl);
        const X509_NAME
        *OSSL_CRMF_CERTTEMPLATE_get0_issuer(const OSSL_CRMF_CERTTEMPLATE *tmpl);
        const ASN1_INTEGER
        *OSSL_CRMF_CERTTEMPLATE_get0_serialNumber(const OSSL_CRMF_CERTTEMPLATE *tmpl);
        X509_EXTENSIONS
        *OSSL_CRMF_CERTTEMPLATE_get0_extensions(const OSSL_CRMF_CERTTEMPLATE *tmpl);

        const ASN1_INTEGER
        *OSSL_CRMF_CERTID_get0_serialNumber(const OSSL_CRMF_CERTID *cid);
        const X509_NAME *OSSL_CRMF_CERTID_get0_issuer(const OSSL_CRMF_CERTID *cid);

        X509 *OSSL_CRMF_ENCRYPTEDKEY_get1_encCert(const OSSL_CRMF_ENCRYPTEDKEY *ecert,
                                                  OSSL_LIB_CTX *libctx, const char *propq,
                                                  EVP_PKEY *pkey, unsigned int flags);
        EVP_PKEY
        *OSSL_CRMF_ENCRYPTEDKEY_get1_pkey(OSSL_CRMF_ENCRYPTEDKEY *encryptedKey,
                                          X509_STORE *ts, STACK_OF(X509) *extra,
                                          EVP_PKEY *pkey, X509 *cert,
                                          ASN1_OCTET_STRING *secret,
                                          OSSL_LIB_CTX *libctx, const char *propq);
        OSSL_CRMF_ENCRYPTEDKEY
        *OSSL_CRMF_ENCRYPTEDKEY_init_envdata(CMS_EnvelopedData *envdata);

        unsigned char
        *OSSL_CRMF_ENCRYPTEDVALUE_decrypt(const OSSL_CRMF_ENCRYPTEDVALUE *enc,
                                          OSSL_LIB_CTX *libctx, const char *propq,
                                          EVP_PKEY *pkey, int *outlen);
        X509
        *OSSL_CRMF_ENCRYPTEDVALUE_get1_encCert(const OSSL_CRMF_ENCRYPTEDVALUE *ecert,
                                               OSSL_LIB_CTX *libctx, const char *propq,
                                               EVP_PKEY *pkey);

        int OSSL_CRMF_MSG_get_certReqId(const OSSL_CRMF_MSG *crm);
        int OSSL_CRMF_MSG_centralkeygen_requested(const OSSL_CRMF_MSG *crm,
                                                  const X509_REQ *p10cr);

💅 DESCRIPTION 💅

OSSL_CRMF_MSG_get0_tmpl() — grabs the certificate template of crm. 🎀

OSSL_CRMF_CERTTEMPLATE_get0_publicKey() — pulls out the public key of the given certificate template tmpl. 🔑

OSSL_CRMF_CERTTEMPLATE_get0_subject() — retrieves the subject name of the given certificate template tmpl. 🪪

OSSL_CRMF_CERTTEMPLATE_get0_issuer() — retrieves the issuer name of the given certificate template tmpl. 🏷️

OSSL_CRMF_CERTTEMPLATE_get0_serialNumber() — retrieves the serialNumber of the given certificate template tmpl. 🔢

OSSL_CRMF_CERTTEMPLATE_get0_extensions() — retrieves the X.509 extensions of the given certificate template tmpl, or NULL if they’re not present. 📦

OSSL_CRMF_CERTID_get0_serialNumber — retrieves the serialNumber of the given CertId cid. 🧾

OSSL_CRMF_CERTID_get0_issuer — retrieves the issuer name of the given CertId cid, which must be of ASN.1 type GEN_DIRNAME. 🌟

OSSL_CRMF_ENCRYPTEDKEY_get1_encCert() — decrypts the certificate in the given encryptedKey ecert, using the private key pkey, library context libctx, and property query string propq (see OSSL_LIB_CTX(3)). This is needed for the indirect POPO method as in RFC 4210 section 5.2.8.2. The function returns the decrypted certificate as a copy, leaving its ownership with the caller, who is responsible for freeing it. 🫶

OSSL_CRMF_ENCRYPTEDKEY_get1_pkey() — decrypts the private key in encryptedKey. If encryptedKey is not of type OSSL_CRMF_ENCRYPTEDKEY_ENVELOPEDDATA, decryption uses the private key pkey. The library context libctx and property query propq are taken into account as usual. The rest of this paragraph is relevant only if CMS support is not disabled for the OpenSSL build and encryptedKey is of type case OSSL_CRMF_ENCRYPTEDKEY_ENVELOPEDDATA. Decryption uses the secret parameter if it’s not NULL; otherwise it uses the private key <pkey> and the certificate cert related to pkey, where cert is recommended to be given if available. On success, the function verifies the decrypted data as signed data, using the trust store ts and any untrusted certificates in extra. Doing so, it checks for the purpose "CMP Key Generation Authority" (cmKGA). 🔥

OSSL_CRMF_ENCRYPTEDKEY_init_envdata() — returns OSSL_CRMF_ENCRYPTEDKEY, initialized with the enveloped data envdata. 🧚

OSSL_CRMF_ENCRYPTEDVALUE_decrypt() — decrypts the encrypted value in the given encryptedValue enc, using the private key pkey, library context libctx, and property query string propq (see OSSL_LIB_CTX(3)). 🌀

OSSL_CRMF_ENCRYPTEDVALUE_get1_encCert() — decrypts the certificate in the given encryptedValue ecert, using the private key pkey, library context libctx, and property query string propq (see OSSL_LIB_CTX(3)). This is needed for the indirect POPO method as in RFC 4210 section 5.2.8.2. The function returns the decrypted certificate as a copy, leaving its ownership with the caller, who is responsible for freeing it. 💖

OSSL_CRMF_MSG_get_certReqId() — retrieves the certReqId of crm. 🪄

OSSL_CRMF_MSG_centralkeygen_requested() — returns 1 if central key generation is requested, i.e., the public key in the certificate request (crm is taken if it is non-NULL, otherwise p10cr) is NULL or has an empty key value (with length zero). In case crm is non-NULL, this is checked for consistency with its popo field (must be NULL if and only if central key generation is requested). Otherwise it returns 0, and on error a negative value. 👀

🫶 RETURN VALUES 🫶

OSSL_CRMF_MSG_get_certReqId() returns the certificate request ID as a nonnegative integer or -1 on error. 🧮

OSSL_CRMF_MSG_centralkeygen_requested() returns 1 if central key generation is requested, 0 if it is not requested, and a negative value on error. 🚦

All other functions return a pointer with the intended result or NULL on error. 💫

🔗 SEE ALSO 🔗

🕰️ HISTORY 🕰️

  • The OpenSSL CRMF support was added in OpenSSL 3.0. 🌱
  • OSSL_CRMF_CERTTEMPLATE_get0_publicKey() was added in OpenSSL 3.2. ✨
  • OSSL_CRMF_ENCRYPTEDKEY_get1_encCert(), OSSL_CRMF_ENCRYPTEDKEY_get1_pkey(), OSSL_CRMF_ENCRYPTEDKEY_init_envdata(), OSSL_CRMF_ENCRYPTEDVALUE_decrypt() and OSSL_CRMF_MSG_centralkeygen_requested() were added in OpenSSL 3.5. 🎀

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Licensed under the Apache License 2.0 (the "License"). You may not use this file except in compliance with the License. You can obtain a copy in the file LICENSE in the source distribution or at <https://www.openssl.org/source/license.html>.

mwah 💋 — this was OpenSSL 3.5.0, dated 2026-09-25, and you were reading OSSL_CRMF_MSG_GET0_TMPL(3ossl). bye bestie! 💖

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