Csr Objective-C Reference Documentation

CkoCsr

Current Version: 10.1.2

A class for generating Certificate Signing Requests (CSR) or for reading an existing CSR.

This class is introduced in Chilkat v9.5.0.65

Object Creation

CkoCsr *obj = [[CkoCsr alloc] init];

Properties

CommonName
@property (nonatomic, copy) NSString *CommonName;
Introduced in version 9.5.0.65

The common name of the certificate to be generated. For SSL/TLS certificates, this would be the domain name. For email certificates this would be the email address.

It is the value for "CN" in the certificate's Subject's distinguished name (DN). (This is the value for OID "2.5.4.3")

This property is required for a CSR.

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Company
@property (nonatomic, copy) NSString *Company;
Introduced in version 9.5.0.65

The company or organization name for the certificate to be generated.

It is the value for "O" in the certificate's Subject's distinguished name (DN). (This is the value for OID "2.5.4.10")

This property is optional. It may left empty.

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CompanyDivision
@property (nonatomic, copy) NSString *CompanyDivision;
Introduced in version 9.5.0.65

The company division or organizational unit name for the certificate to be generated.

It is the value for "OU" in the certificate's Subject's distinguished name (DN). (This is the value for OID "2.5.4.11")

This property is optional. It may left empty.

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Country
@property (nonatomic, copy) NSString *Country;
Introduced in version 9.5.0.65

The two-letter uppercase country abbreviation, such as "US", for the certificate to be generated.

It is the value for "C" in the certificate's Subject's distinguished name (DN). (This is the value for OID "2.5.4.6")

This property is optional. It may left empty.

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DebugLogFilePath
@property (nonatomic, copy) NSString *DebugLogFilePath;

If set to a file path, this property logs the LastErrorText of each Chilkat method or property call to the specified file. This logging helps identify the context and history of Chilkat calls leading up to any crash or hang, aiding in debugging.

Enabling the VerboseLogging property provides more detailed information. This property is mainly used for debugging rare instances where a Chilkat method call causes a hang or crash, which should generally not happen.

Possible causes of hangs include:

  • A timeout property set to 0, indicating an infinite timeout.
  • A hang occurring within an event callback in the application code.
  • An internal bug in the Chilkat code causing the hang.

More Information and Examples
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EmailAddress
@property (nonatomic, copy) NSString *EmailAddress;
Introduced in version 9.5.0.65

The email address for the certificate to be generated.

It is the value for "E" in the certificate's Subject's distinguished name (DN). (This is the value for OID "1.2.840.113549.1.9.1")

This property is optional. It may left empty.

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HashAlgorithm
@property (nonatomic, copy) NSString *HashAlgorithm;
Introduced in version 9.5.0.82

The hash algorithm to be used when creating the CSR. The default is SHA256. Can be set to SHA1, SHA384, SHA256, or SHA512.

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LastErrorHtml
@property (nonatomic, readonly, copy) NSString *LastErrorHtml;

Provides HTML-formatted information about the last called method or property. If a method call fails or behaves unexpectedly, check this property for details. Note that information is available regardless of the method call's success.

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LastErrorText
@property (nonatomic, readonly, copy) NSString *LastErrorText;

Provides plain text information about the last called method or property. If a method call fails or behaves unexpectedly, check this property for details. Note that information is available regardless of the method call's success.

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LastErrorXml
@property (nonatomic, readonly, copy) NSString *LastErrorXml;

Provides XML-formatted information about the last called method or property. If a method call fails or behaves unexpectedly, check this property for details. Note that information is available regardless of the method call's success.

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LastMethodSuccess
@property (nonatomic) BOOL LastMethodSuccess;

Indicates the success or failure of the most recent method call: YES means success, NO means failure. This property remains unchanged by property setters or getters. This method is present to address challenges in checking for null or Nothing returns in certain programming languages.

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Locality
@property (nonatomic, copy) NSString *Locality;
Introduced in version 9.5.0.65

The locality (city or town) name for the certificate to be generated.

It is the value for "L" in the certificate's Subject's distinguished name (DN). (This is the value for OID "2.5.4.7")

This property is optional. It may left empty.

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MgfHashAlg
@property (nonatomic, copy) NSString *MgfHashAlg;
Introduced in version 9.5.0.83

If the private key is RSA and PssPadding equals YES (RSASSA-PSS padding is used for the RSA signature), then this property controls the MGF hash algorithm used in the RSASSA-PSS padding. The default is "sha256". Can be set to "sha256", "sha384", or "sha512".

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PssPadding
@property (nonatomic) BOOL PssPadding;
Introduced in version 9.5.0.83

If _CKTRUE_, and if the private key is RSA, then uses RSASSA-PSS padding for the signature.

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State
@property (nonatomic, copy) NSString *State;
Introduced in version 9.5.0.65

The state or province for the certificate to be generated.

It is the value for "S" (or "ST") in the certificate's Subject's distinguished name (DN). (This is the value for OID "2.5.4.8")

This property is optional. It may left empty.

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VerboseLogging
@property (nonatomic) BOOL VerboseLogging;

If set to YES, then the contents of LastErrorText (or LastErrorXml, or LastErrorHtml) may contain more verbose information. The default value is NO. Verbose logging should only be used for debugging. The potentially large quantity of logged information may adversely affect peformance.

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Version
@property (nonatomic, readonly, copy) NSString *Version;

Version of the component/library, such as "10.1.0"

More Information and Examples
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Methods

AddSan
- (BOOL)AddSan:(NSString *)sanType
    sanValue:(NSString *)sanValue;
Introduced in version 9.5.0.84

Adds a SAN value (Subject Alternative Name) to the CSR to be generated. This method can be called multiple times -- one per subject alternative name to be added.

The sanType specifies the type of SAN, and can be one of the following strings:

  • otherName
  • rfc822Name
  • dnsName
  • x400Address
  • directoryName
  • ediPartyName
  • uniformResourceIndicator
  • IPAddress
  • registeredID

The sanValue is the value. For example, if the sanType is "dsnName", the sanValue might be "example.com". If the sanType is "IPAddress", then the sanValue might be "69.12.122.63".

Returns YES for success, NO for failure.

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GenCsrBd
- (BOOL)GenCsrBd:(CkoPrivateKey *)privKey
    csrData:(CkoBinData *)csrData;
Introduced in version 9.5.0.65

Generate a CSR and return the binary DER in csrData. The privKey can be an RSA or ECDSA private key.

Returns YES for success, NO for failure.

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GenCsrPem
- (NSString *)GenCsrPem:(CkoPrivateKey *)privKey;
Introduced in version 9.5.0.65

Generate a CSR and return it as a PEM string. The privKey can be an RSA or ECDSA private key.

Returns nil on failure

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GetExtensionRequest
- (BOOL)GetExtensionRequest:(CkoXml *)extensionReqXml;
Introduced in version 9.5.0.91

Gets the 1.2.840.113549.1.9.14 extensionRequest from the previously loaded CSR. The extensionReqXml will be loaded with the extension request XML if one exists.

Returns YES for success, NO for failure.

More Information and Examples
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GetPublicKey
- (BOOL)GetPublicKey:(CkoPublicKey *)pubkey;
Introduced in version 9.5.0.76

Returns the CSR's public key in the pubkey.

Returns YES for success, NO for failure.

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GetSans
- (BOOL)GetSans:(CkoStringTable *)sans;
Introduced in version 9.5.0.91

Gets the SANS (Subject Alternative Names) of the currently loaded CSR. The information is written to the passed-in sans object.

Returns YES for success, NO for failure.

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GetSubjectField
- (NSString *)GetSubjectField:(NSString *)oid;
Introduced in version 9.5.0.65

Gets a subject field by OID, such as "2.5.4.9". See http://www.alvestrand.no/objectid/2.5.4.html for OID values and meanings.

Returns nil on failure

More Information and Examples
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LoadCsrPem
- (BOOL)LoadCsrPem:(NSString *)csrPemStr;
Introduced in version 9.5.0.65

Loads this CSR object with a CSR PEM. All properties are set to the values found within the CSR.

Returns YES for success, NO for failure.

More Information and Examples
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SetExtensionRequest
- (BOOL)SetExtensionRequest:(CkoXml *)extensionReqXml;
Introduced in version 9.5.0.91

Adds a 1.2.840.113549.1.9.14 extensionRequest to the CSR. The extensionReqXml contains the ASN.1 in XML format of the extension request to be added.

Returns YES for success, NO for failure.

More Information and Examples
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SetSubjectField
- (BOOL)SetSubjectField:(NSString *)oid
    value:(NSString *)value
    asnType:(NSString *)asnType;
Introduced in version 9.5.0.65

Sets a subject field by OID, such as "2.5.4.9". See http://www.alvestrand.no/objectid/2.5.4.html for OID values and meanings.

The asnType can be "UTF8String", "IA5String", or "PrintableString". If you have no specific requirement, or don't know, choose "UTF8String".

Returns YES for success, NO for failure.

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VerifyCsr
- (BOOL)VerifyCsr;
Introduced in version 9.5.0.83

Verify the signature in the CSR. Return YES if the signature is valid.

Returns YES for success, NO for failure.

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