/usr/include/x86_64-linux-gnu/qcc/CertificateECC.h is in liballjoyn-common-dev-1509 15.09a-5.
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#define _CERTIFICATE_ECC_H_
/**
* @file
*
* Certificate ECC utilities
*/
/******************************************************************************
* Copyright AllSeen Alliance. All rights reserved.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
******************************************************************************/
#include <assert.h>
#include <qcc/platform.h>
#include <qcc/GUID.h>
#include <qcc/CryptoECC.h>
#include <qcc/KeyInfoECC.h>
namespace qcc {
/**
* @defgroup 509_oids X.509 OIDs
*
* The X.509 object identifiers OIDs
* @{
*/
/**
* The sha256ECDSA Hash Algorithm OID (1.2.840.10045.4.3.2)
*/
extern const qcc::String OID_SIG_ECDSA_SHA256;
/**
* The ECC Public Key OID (1.2.840.10045.4.3.2)
*/
extern const qcc::String OID_KEY_ECC;
/**
* ECDSA_P256 Public Key OID (1.2.840.10045.3.1.7)
*/
extern const qcc::String OID_CRV_PRIME256V1;
/**
* Organization Unit Name OID (2.5.4.11)
*/
extern const qcc::String OID_DN_OU;
/**
* Common Name OID (2.5.4.3)
*/
extern const qcc::String OID_DN_CN;
/**
* Basic Contraints OID (2.5.29.19)
*/
extern const qcc::String OID_BASIC_CONSTRAINTS;
/**
* The sha256NoSign Hash Algorithm OID (2.16.840.1.101.3.4.2.1)
*/
extern const qcc::String OID_DIG_SHA256;
/**
* custom OID for the digest of external data (1.3.6.1.4.1.44924.1.2)
*/
extern const qcc::String OID_CUSTOM_DIGEST;
/**
* custom OID for the Allseen identity certificate EKU (1.3.6.1.4.1.44924.1.1)
*/
extern const qcc::String OID_CUSTOM_EKU_IDENTITY;
/**
* custom OID for the Allseen membership certificate EKU (1.3.6.1.4.1.44924.1.5)
*/
extern const qcc::String OID_CUSTOM_EKU_MEMBERSHIP;
/**
* Authority Key Identifier OID (2.5.29.35)
*/
extern const qcc::String OID_AUTHORITY_KEY_IDENTIFIER;
/**
* custom OID for the Allseen security group Id (1.3.6.1.4.1.44924.1.3)
*/
extern const qcc::String OID_CUSTOM_SECURITY_GROUP_ID;
/**
* custom OID for the Allseen identity alias (1.3.6.1.4.1.44924.1.4)
*/
extern const qcc::String OID_CUSTOM_IDENTITY_ALIAS;
/** @} */
/**
* X.509 Certificate
*/
class CertificateX509 {
public:
/**
* The Authority key identifier size in bytes
*/
static const size_t AUTHORITY_KEY_ID_SZ = 8;
/**
* The validity period
*/
struct ValidPeriod {
uint64_t validFrom; /**< the date time when the cert becomes valid
expressed in the number of seconds in EPOCH Jan 1, 1970 */
uint64_t validTo; /**< the date time after which the cert becomes invalid
expressed in the number of seconds in EPOCH Jan 1, 1970 */
};
/**
* encoding format
*/
typedef enum {
ENCODING_X509_DER = 0, ///< X.509 DER format
ENCODING_X509_DER_PEM = 1 ///< X.509 DER PEM format
} EncodingType;
typedef enum {
UNRESTRICTED_CERTIFICATE, ///< Unrestricted certificate
IDENTITY_CERTIFICATE, ///< identity certificate
MEMBERSHIP_CERTIFICATE, ///< membership certificate
INVALID_CERTIFICATE ///< certificate not valid for any AllJoyn purpose
} CertificateType;
/**
* Default Constructor
*/
CertificateX509() : type(UNRESTRICTED_CERTIFICATE), serialLen(0), serial(NULL), ca(0)
{
}
/**
* Constructor
* @param type the certificate type.
*/
CertificateX509(CertificateType type) : type(type), serialLen(0), serial(NULL), ca(0)
{
}
/**
* Decode a PEM encoded certificate.
* @param pem the encoded certificate.
* @return ER_OK for success; otherwise, error code.
*/
QStatus DecodeCertificatePEM(const qcc::String& pem);
/**
* Export the certificate as PEM encoded.
* @param[out] pem the encoded certificate.
* @return ER_OK for success; otherwise, error code.
*/
QStatus EncodeCertificatePEM(qcc::String& pem) const;
/**
* Helper function to generate PEM encoded string using a DER encoded string.
* @param der the encoded certificate.
* @param[out] pem the encoded certificate.
* @return ER_OK for success; otherwise, error code.
*/
static QStatus AJ_CALL EncodeCertificatePEM(qcc::String& der, qcc::String& pem);
/**
* Decode a DER encoded certificate.
* @param der the encoded certificate.
* @return ER_OK for success; otherwise, error code.
*/
virtual QStatus DecodeCertificateDER(const qcc::String& der);
/**
* Export the certificate as DER encoded.
* @param[out] der the encoded certificate.
* @return ER_OK for success; otherwise, error code.
*/
QStatus EncodeCertificateDER(qcc::String& der) const;
/**
* Encode the private key in a PEM string.
*
* @deprecated May 2015 for 15.08 release
* @see CertificateX509::EncodePrivateKeyPEM(const ECCPrivateKey* privateKey, String& encoded)
*
* @param privateKey the private key to encode
* @param len the private key length
* @param[out] encoded the output string holding the resulting PEM string
* @return ER_OK for success; otherwise, error code.
*/
QCC_DEPRECATED(static QStatus AJ_CALL EncodePrivateKeyPEM(const uint8_t * privateKey, size_t len, String & encoded));
/**
* Encode the private key in a PEM string.
* @param privateKey the private key to encode
* @param[out] encoded the output string holding the resulting PEM string
* @return ER_OK for success; otherwise, error code.
*/
static QStatus AJ_CALL EncodePrivateKeyPEM(const ECCPrivateKey* privateKey, String& encoded);
/**
* Decode the private key from a PEM string.
*
* @deprecated May 2015 for 15.08 release
* @see CertificateX509::DecodePrivateKeyPEM(const String& encode, ECCPrivateKey* privateKey)
*
* @param encoded the input string holding the PEM string
* @param[out] privateKey the output private key
* @param len the private key length
* @return ER_OK for success; otherwise, error code.
*/
QCC_DEPRECATED(static QStatus AJ_CALL DecodePrivateKeyPEM(const String &encoded, uint8_t * privateKey, size_t len));
/**
* Decode the private key from a PEM string.
* @param encoded the input string holding the PEM string
* @param[out] privateKey the output private key
* @return ER_OK for success; otherwise, error code.
*/
static QStatus AJ_CALL DecodePrivateKeyPEM(const String& encoded, ECCPrivateKey* privateKey);
/**
* Encode the public key in a PEM string.
*
* @deprecated May 2015 for 15.08 release
* @see CertificateX509::EncodePublicKeyPEM(const ECCPublicKey* publicKey, String& encoded)
*
* @param publicKey the public key to encode
* @param len the public key length
* @param[out] encoded the output string holding the resulting PEM string
* @return ER_OK for success; otherwise, error code.
*/
QCC_DEPRECATED(static QStatus AJ_CALL EncodePublicKeyPEM(const uint8_t * publicKey, size_t len, String & encoded));
/**
* Encode the public key in a PEM string.
* @param publicKey the public key to encode
* @param[out] encoded the output string holding the resulting PEM string
* @return ER_OK for success; otherwise, error code.
*/
static QStatus AJ_CALL EncodePublicKeyPEM(const ECCPublicKey* publicKey, String& encoded);
/**
* Decode the public key from a PEM string.
*
* @deprecated May 2015 for 15.08 release
* @see CertificateX509::DecodePublicKeyPEM(const String& encoded, ECCPublicKey* publicKey)
*
* @param encoded the input string holding the PEM string
* @param[out] publicKey the output public key
* @param len the public key length
* @return ER_OK for success; otherwise, error code.
*/
QCC_DEPRECATED(static QStatus AJ_CALL DecodePublicKeyPEM(const String &encoded, uint8_t * publicKey, size_t len));
/**
* Decode the public key from a PEM string.
* @param encoded the input string holding the PEM string
* @param[out] publicKey the output public key
* @return ER_OK for success; otherwise, error code.
*/
static QStatus AJ_CALL DecodePublicKeyPEM(const String& encoded, ECCPublicKey* publicKey);
/**
* Sign the certificate.
* @param key the ECDSA private key.
* @return ER_OK for success; otherwise, error code.
*/
QStatus Sign(const ECCPrivateKey* key);
/**
* Sign the certificate and generate the authority key identifier.
* @param privateKey the ECDSA private key.
* @param publicKey the ECDSA public key to generate the authority key
* identifier.
* @return ER_OK for success; otherwise, error code.
*/
QStatus SignAndGenerateAuthorityKeyId(const ECCPrivateKey* privateKey, const ECCPublicKey* publicKey);
/**
* Verify a self-signed certificate.
* @return ER_OK for success; otherwise, error code.
*/
QStatus Verify() const;
/**
* Verify the certificate.
* @param key the ECDSA public key.
* @return ER_OK for success; otherwise, error code.
*/
QStatus Verify(const ECCPublicKey* key) const;
/**
* Verify the certificate against the trust anchor.
* @param trustAnchor the trust anchor
* @return ER_OK for success; otherwise, error code.
*/
QStatus Verify(const KeyInfoNISTP256& trustAnchor) const;
/**
* Verify the validity period of the certificate.
* @return ER_OK for success; otherwise, error code.
*/
QStatus VerifyValidity() const;
/**
* Set the serial number field
* @param serialNumber The serial number
* @param len Length of the serial array
*/
void SetSerial(const uint8_t* serialNumber, const size_t len)
{
serialLen = len;
delete[] this->serial;
if ((serialLen > 0) && serialNumber) {
this->serial = new uint8_t[serialLen];
memcpy(this->serial, serialNumber, serialLen);
} else {
this->serial = NULL;
}
}
/**
* Get the serial number
* @return the serial number
*/
const uint8_t* GetSerial() const
{
return serial;
}
/**
* Get the length of the serial number
* @return Length of the serial number
*/
const size_t GetSerialLen() const
{
return serialLen;
}
/**
* Set the issuer organization unit field
* @param ou the organization unit
* @param len the length of the organization unit field
*/
void SetIssuerOU(const uint8_t* ou, size_t len)
{
issuer.SetOU(ou, len);
}
/**
* Get the length of the issuer organization unit field
* @return the length of the issuer organization unit field
*/
const size_t GetIssuerOULength() const
{
return issuer.ouLen;
}
/**
* Get the issuer organization unit field
* @return the issuer organization unit field
*/
const uint8_t* GetIssuerOU() const
{
return issuer.ou;
}
/**
* Set the issuer common name field
* @param cn the common name
* @param len the length of the common name field
*/
void SetIssuerCN(const uint8_t* cn, size_t len)
{
issuer.SetCN(cn, len);
}
/**
* Get the length of the issuer common name field
* @return the length of the issuer common name field
*/
const size_t GetIssuerCNLength() const
{
return issuer.cnLen;
}
/**
* Get the issuer common name field
* @return the issuer common name field
*/
const uint8_t* GetIssuerCN() const
{
return issuer.cn;
}
/**
* Set the subject organization unit field
* @param ou the organization unit
* @param len the length of the organization unit field
*/
void SetSubjectOU(const uint8_t* ou, size_t len)
{
subject.SetOU(ou, len);
}
/**
* Get the length of the subject organization unit field
* @return the length of the subject organization unit field
*/
const size_t GetSubjectOULength() const
{
return subject.ouLen;
}
/**
* Get the subject organization unit field
* @return the subject organization unit field
*/
const uint8_t* GetSubjectOU() const
{
return subject.ou;
}
/**
* Set the subject common name field
* @param cn the common name
* @param len the length of the common name field
*/
void SetSubjectCN(const uint8_t* cn, size_t len)
{
subject.SetCN(cn, len);
}
/**
* Get the length of the subject common name field
* @return the length of the subject common name field
*/
const size_t GetSubjectCNLength() const
{
return subject.cnLen;
}
/**
* Get the subject common name field
* @return the subject common name field
*/
const uint8_t* GetSubjectCN() const
{
return subject.cn;
}
/**
* Set the subject alt name field
* @param subjectAltName the subject alt name
*/
void SetSubjectAltName(const qcc::String& subjectAltName)
{
this->subjectAltName = subjectAltName;
}
/**
* Get the subject alt name field
* @return the subject alt name
*/
const qcc::String& GetSubjectAltName() const
{
return subjectAltName;
}
/**
* Generate the authority key identifier.
* @param issuerPubKey the issuer's public key
* @param[out] authorityKeyId the authority key identifier
* @return ER_OK for success; otherwise, error code.
*/
static QStatus AJ_CALL GenerateAuthorityKeyId(const qcc::ECCPublicKey* issuerPubKey, qcc::String& authorityKeyId);
/**
* Generate the issuer authority key identifier for the certificate.
* @param issuerPubKey the issuer's public key
* @return ER_OK for success; otherwise, error code.
*/
QStatus GenerateAuthorityKeyId(const qcc::ECCPublicKey* issuerPubKey);
const qcc::String& GetAuthorityKeyId() const
{
return aki;
}
/**
* Updates the current AuthorityKeyId with a new one.
*
* @param[in] newAki the new AuthorityKeyId for this certificate.
*/
void SetAuthorityKeyId(const qcc::String& newAki)
{
aki = newAki;
}
/**
* Set the validity field
* @param validPeriod the validity period
*/
void SetValidity(const ValidPeriod* validPeriod)
{
validity.validFrom = validPeriod->validFrom;
validity.validTo = validPeriod->validTo;
}
/**
* Get the validity period.
* @return the validity period
*/
const ValidPeriod* GetValidity() const
{
return &validity;
}
/**
* Set the subject public key field
* @param key the subject public key
*/
void SetSubjectPublicKey(const ECCPublicKey* key)
{
publickey = *key;
}
/**
* Get the subject public key
* @return the subject public key
*/
const ECCPublicKey* GetSubjectPublicKey() const
{
return &publickey;
}
/**
* Indicate that the subject may act as a certificate authority.
* @param flag flag indicating the subject may act as a CA
*/
void SetCA(bool flag)
{
ca = flag ? 1 : 0;
}
/**
* Can the subject act as a certificate authority?
* @return true if so.
*/
const bool IsCA() const
{
return ca ? true : false;
}
/**
* Set the digest of the external data.
* @param digest the digest of the external data
* @param count the size of the digest.
*/
void SetDigest(const uint8_t* digest, size_t size)
{
this->digest = qcc::String((char*) digest, size);
}
/**
* Get the digest of the external data.
* @param digest the digest of the external data
*/
const uint8_t* GetDigest() const
{
return (const uint8_t*) digest.data();
}
/**
* Get the size of the digest of the external data.
* @return the size of the digest of the external data
*/
const size_t GetDigestSize() const
{
return digest.size();
}
/**
* Is the optional digest field present in the certificate?
* @return whether this optional field is present in the certificate.
*/
bool IsDigestPresent()
{
return !digest.empty();
}
/**
* Get the PEM encoded bytes for the certificate
* @return the PEM encoded bytes
*/
String GetPEM();
/**
* Load the PEM encoded bytes for the certificate
* @param PEM the encoded bytes
* @return ER_OK for success; otherwise, error code.
*/
QStatus LoadPEM(const String& PEM);
/**
* Returns a human readable string for a cert if there is one associated with this key.
*
* @return A string for the cert or and empty string if there is no cert.
*/
qcc::String ToString() const;
/**
* Determine if this certificate issued a given certificate by comparing the distinguished
* name and verifying the digital signature.
* @param issuedCertificate Certificate to check if it was issued by this certificate.
* @return true if so.
*/
bool IsIssuerOf(const CertificateX509& issuedCertificate) const;
/**
* Is the subject DN of this certificate equal to a given DN?
* @param cn Common Name component of the DN to compare to.
* @param cnLength Length of the cn array. Zero if null.
* @param ou Organizational Unit component of the DN to compare to.
* @param ouLength Length of the ou array. Zero if null.
* @return true if so.
*/
bool IsDNEqual(const uint8_t* cn, const size_t cnLength, const uint8_t* ou, const size_t ouLength) const;
/**
* Is the subject DN of this certificate equal to a given certificate's DN?
* @param other CertificateX509 to compare to.
* @return true if so.
*/
bool IsDNEqual(const CertificateX509& other) const;
/**
* Is the subject public key of this certificate equal to a given key?
* @param publicKey Public key to compare to.
* @return true if so.
*/
bool IsSubjectPublicKeyEqual(const ECCPublicKey* publicKey) const;
/**
* Destructor
*/
virtual ~CertificateX509()
{
delete [] serial;
}
const CertificateType GetType() const
{
return type;
}
/**
* Retrieve the number of X.509 certificates in a PEM string representing a cert chain.
* @param encoded the input string holding the PEM string
* @param[in,out] certChain the input string holding the array of certs.
* @param[in] count the expected number of certs
* @return ER_OK for success; otherwise, error code.
*/
static QStatus AJ_CALL DecodeCertChainPEM(const String& encoded, CertificateX509* certChain, size_t count);
/**
* Copy Constructor for CertificateX509
*
* @param[in] other CertificateX509 to copy
*/
CertificateX509(const CertificateX509& other) :
type(other.type), tbs(other.tbs), serial(NULL),
issuer(other.issuer), subject(other.subject),
validity(other.validity), publickey(other.publickey),
signature(other.signature), ca(other.ca), digest(other.digest),
subjectAltName(other.subjectAltName), aki(other.aki) {
SetSerial(other.serial, other.serialLen);
}
/**
* Assign operator for CertificateX509
*
* @param[in] other CertificateX509 to assign from
*/
CertificateX509& operator=(const CertificateX509& other) {
if (&other != this) {
type = other.type;
tbs = other.tbs;
SetSerial(other.serial, other.serialLen);
issuer = other.issuer;
subject = other.subject;
validity = other.validity;
publickey = other.publickey;
signature = other.signature;
ca = other.ca;
digest = other.digest;
subjectAltName = other.subjectAltName;
aki = other.aki;
}
return *this;
}
/**
* Validate the certificate type of each cert in the certificate chain.
* The end-entity cert must have a type.
* Any signing cert in the chain must have the same type or unrestricted
* type in order to sign the next cert in the chain.
* @param[in] certChain the array of certs.
* @param[in] count the number of certs
* @return true if valid; false, otherwise;
*/
static bool AJ_CALL ValidateCertificateTypeInCertChain(const CertificateX509* certChain, size_t count);
private:
struct DistinguishedName {
uint8_t* ou;
size_t ouLen;
uint8_t* cn;
size_t cnLen;
DistinguishedName() : ou(NULL), ouLen(0), cn(NULL), cnLen(0)
{
}
void SetOU(const uint8_t* newOu, size_t len)
{
ouLen = len;
delete [] this->ou;
this->ou = new uint8_t[len];
memcpy(this->ou, newOu, len);
}
void SetCN(const uint8_t* newCn, size_t len)
{
cnLen = len;
delete [] this->cn;
this->cn = new uint8_t[len];
memcpy(this->cn, newCn, len);
}
~DistinguishedName()
{
delete [] ou;
delete [] cn;
}
DistinguishedName(const DistinguishedName& other) :
ouLen(other.ouLen), cnLen(other.cnLen) {
ou = new uint8_t[ouLen];
memcpy(ou, other.ou, ouLen);
cn = new uint8_t[cnLen];
memcpy(cn, other.cn, cnLen);
}
DistinguishedName& operator=(const DistinguishedName& other) {
if (&other != this) {
ouLen = other.ouLen;
cnLen = other.cnLen;
delete[] ou;
ou = new uint8_t[ouLen];
memcpy(ou, other.ou, ouLen);
delete[] cn;
cn = new uint8_t[cnLen];
memcpy(cn, other.cn, cnLen);
}
return *this;
}
};
QStatus DecodeCertificateTBS();
QStatus EncodeCertificateTBS();
QStatus DecodeCertificateName(const qcc::String& dn, CertificateX509::DistinguishedName& name);
QStatus EncodeCertificateName(qcc::String& dn, const CertificateX509::DistinguishedName& name) const;
QStatus DecodeCertificateTime(const qcc::String& time);
QStatus EncodeCertificateTime(qcc::String& time) const;
QStatus DecodeCertificatePub(const qcc::String& pub);
QStatus EncodeCertificatePub(qcc::String& pub) const;
QStatus DecodeCertificateExt(const qcc::String& ext);
QStatus EncodeCertificateExt(qcc::String& ext) const;
QStatus DecodeCertificateSig(const qcc::String& sig);
QStatus EncodeCertificateSig(qcc::String& sig) const;
CertificateType type;
qcc::String tbs;
size_t serialLen;
uint8_t* serial;
DistinguishedName issuer;
DistinguishedName subject;
ValidPeriod validity;
ECCPublicKey publickey;
ECCSignature signature;
/*
* Extensions
*/
uint32_t ca;
qcc::String digest;
qcc::String subjectAltName;
qcc::String aki;
};
/**
* An X.509 certificate that represents a membership certificate
*/
class MembershipCertificate : public CertificateX509 {
public:
MembershipCertificate() : CertificateX509(MEMBERSHIP_CERTIFICATE)
{
}
/**
* Destructor
*/
virtual ~MembershipCertificate()
{
}
/**
* Check if a guild is set for this certificate.
*
* @return true if this certificate has a valid guild set, false otherwise
*/
bool IsGuildSet() const
{
return GetSubjectAltName().size() > 0;
}
/**
* Set the guild GUID
* @param guid the guild GUID
*/
void SetGuild(const qcc::GUID128& guid)
{
qcc::String sgId((const char*) guid.GetBytes(), guid.SIZE);
SetSubjectAltName(sgId);
}
/**
* Get the guild GUID
* @return the guild GUID
*/
GUID128 GetGuild() const
{
GUID128 guid(0);
qcc::String sgId = GetSubjectAltName();
if (sgId.size() == GUID128::SIZE) {
guid.SetBytes((const uint8_t*) sgId.data());
} else if (sgId.size() > 0) {
uint8_t bytes[GUID128::SIZE];
memset(bytes, 0, GUID128::SIZE);
memcpy(bytes, sgId.data(), sgId.size() > GUID128::SIZE ? GUID128::SIZE : sgId.size());
guid.SetBytes(bytes);
}
return guid;
}
};
/**
* An X.509 certificate that represents an identity certificate
*/
class IdentityCertificate : public CertificateX509 {
public:
IdentityCertificate() : CertificateX509(IDENTITY_CERTIFICATE)
{
}
/**
* Destructor
*/
virtual ~IdentityCertificate()
{
}
/**
* Set the alias field
* @param alias the alias
*/
void SetAlias(const qcc::String& alias)
{
SetSubjectAltName(alias);
}
/**
* Get the alias field
* @return the alias
*/
const qcc::String& GetAlias() const
{
return GetSubjectAltName();
}
};
} /* namespace qcc */
#endif
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