CkoCsr Objective-C Reference Documentation

CkoCsr

Current Version: 9.5.0.97

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, causes each Chilkat method or property call to automatically append it's LastErrorText to the specified log file. The information is appended such that if a hang or crash occurs, it is possible to see the context in which the problem occurred, as well as a history of all Chilkat calls up to the point of the problem. The VerboseLogging property can be set to provide more detailed information.

This property is typically used for debugging the rare cases where a Chilkat method call hangs or generates an exception that halts program execution (i.e. crashes). A hang or crash should generally never happen. The typical causes of a hang are:

  1. a timeout related property was set to 0 to explicitly indicate that an infinite timeout is desired,
  2. the hang is actually a hang within an event callback (i.e. it is a hang within the application code), or
  3. there is an internal problem (bug) in the Chilkat code that causes the hang.

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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 information in HTML format about the last method/property called. If a method call returns a value indicating failure, or behaves unexpectedly, examine this property to get more information.

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

Provides information in plain-text format about the last method/property called. If a method call returns a value indicating failure, or behaves unexpectedly, examine this property to get more information.

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

Provides information in XML format about the last method/property called. If a method call returns a value indicating failure, or behaves unexpectedly, examine this property to get more information.

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LastMethodSuccess
@property (nonatomic) BOOL LastMethodSuccess;

Indicate whether the last method call succeeded or failed. A value of YES indicates success, a value of NO indicates failure. This property is automatically set for method calls. It is not modified by property accesses. The property is automatically set to indicate success for the following types of method calls:

  • Any method that returns a string.
  • Any method returning a Chilkat object, binary bytes, or a date/time.
  • Any method returning a standard boolean status value where success = YES and failure = NO.
  • Any method returning an integer where failure is defined by a return value less than zero.

Note: Methods that do not fit the above requirements will always set this property equal to YES. For example, a method that returns no value (such as a "void" in C++) will technically always succeed.

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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 "9.5.0.94"

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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