--- product: Chilkat product_version: 11.7.0 language: pascal language_label: Lazarus Pascal class: Rsa license: bundle deprecated: false reference_html: https://www.chilkatsoft.com/refdoc/pascal_RsaRef.html --- # Chilkat Rsa — Lazarus Pascal — v11.7.0 > Chilkat 11.7.0 · language=pascal · class=Rsa > Other versions: replace `11.7.0` in this URL. Other languages: `https://www.chilkatsoft.com/ai-docs/v/11.7.0//classes/Rsa.md`. > Language-wide rules (install, unlock, error model, strings/bytes): `https://www.chilkatsoft.com/ai-docs/v/11.7.0/pascal/guide.md`. ## Purpose **Encrypt, decrypt, sign, verify, and generate RSA keys.** Use `Chilkat.Rsa` when an application needs direct RSA cryptographic operations. It can encrypt data with a public key, decrypt with a private key, create RSA signatures, verify signatures, sign precomputed hashes, verify signed hashes, and generate RSA key pairs. It also works with keys supplied directly as `PrivateKey` or `PublicKey` objects, or indirectly through certificates. **RSA encryption** Encrypt data with a public key for workflows where only the matching private key should be able to decrypt the result. **RSA decryption** Decrypt RSA-encrypted data using a private key, including keys loaded directly or accessed through a certificate. **Sign and verify data** Create and verify RSA signatures over data using the hash algorithm and padding mode required by the application or protocol. **Sign precomputed hashes** Sign or verify already-computed message digests when the hashing step is performed separately or by another component. **Generate RSA keys** Generate RSA key pairs for applications that need new public/private key material. **Certificate-backed keys** Use RSA keys associated with certificates, including non-exportable private keys in smart cards, USB tokens, Windows stores, or Apple Keychain. **Common pattern:** Load or generate the RSA key material, configure the padding, hash, charset, and encoding options needed by the protocol, then call the method matching the operation: encrypt, decrypt, sign, verify, sign-hash, or verify-hash. Use `Chilkat.Rsa` for direct RSA operations; use higher-level classes such as `Crypt2`, `Jws`, `Jwt`, or `Mime` when the RSA operation is part of a larger format or protocol. For an extended overview, see [Rsa Class Overview](https://www.chilkatsoft.com/rsa_class_overview.asp). ## Object creation, unlocking and error handling **Create / Free** ```pascal uses Chilkat.Rsa; var obj: TRsa; begin obj := TRsa.Create; try if not obj.IsValid then raise Exception.Create('Failed to create a TRsa instance.'); // ... use obj ... finally obj.Free; end; end; ``` `constructor Create;` Allocates the underlying CkRsa object and returns a new TRsa instance. Simply adding **Chilkat.Rsa** to the unit's `uses` clause is enough to locate and bind to the Chilkat shared library (DLL / .so / .dylib) at runtime — no separate load step is required. Check `obj.IsValid` after calling `Create`; it is `False` if the underlying library could not be found/loaded or the object could not be allocated (for example, when unlicensed). `destructor Destroy; override;` Every TRsa created by calling `Create` should eventually be released by calling `.Free` (inherited from `TObject`). The destructor automatically disposes the underlying CkRsa handle. A native (unmanaged) memory leak occurs if the object is never freed. Call `Global.UnlockBundle` once at the start of the program, before using this or any other Chilkat class. Any string unlocks a fully functional 30-day trial; a purchased unlock code is used in production. See `guide.md` for the exact code in Lazarus Pascal. ## Members common to every Chilkat class Documented once per language in `common-members.md`; listed here so this page is self-contained. | Property | Signature | Access | Meaning | |---|---|---|---| | `DebugLogFilePath` | `property DebugLogFilePath: string read GetDebugLogFilePath write SetDebugLogFilePath;` | read/write | If set to a file path, this property logs the LastErrorText of each Chilkat method or property call to the specified file. | | `LastErrorHtml` | `property LastErrorHtml: string read GetLastErrorHtml;` | read-only | Provides HTML-formatted information about the last called method or property. | | `LastErrorText` | `property LastErrorText: string read GetLastErrorText;` | read-only | Provides plain text information about the last called method or property. | | `LastErrorXml` | `property LastErrorXml: string read GetLastErrorXml;` | read-only | Provides XML-formatted information about the last called method or property. | | `LastMethodSuccess` | `property LastMethodSuccess: Boolean read GetLastMethodSuccess write SetLastMethodSuccess;` | read/write | Indicates the success or failure of the most recent method call: `True` means success, `False` means failure. | | `VerboseLogging` | `property VerboseLogging: Boolean read GetVerboseLogging write SetVerboseLogging;` | read/write | If set to `True`, then the contents of LastErrorText (or LastErrorXml, or LastErrorHtml) may contain more verbose information. | | `Version` | `property Version: string read GetVersion;` | read-only | Version of the component/library, such as "10.1.0" | ## Member index | Member | Kind | Signature | |---|---|---| | `Charset` | property, read/write | `property Charset: string read GetCharset write SetCharset;` | | `EncodingMode` | property, read/write | `property EncodingMode: string read GetEncodingMode write SetEncodingMode;` | | `LittleEndian` | property, read/write | `property LittleEndian: Boolean read GetLittleEndian write SetLittleEndian;` | | `NoUnpad` | property, read/write | `property NoUnpad: Boolean read GetNoUnpad write SetNoUnpad;` | | `NumBits` | property, read-only | `property NumBits: Integer read GetNumBits;` | | `OaepHash` | property, read/write | `property OaepHash: string read GetOaepHash write SetOaepHash;` | | `OaepLabel` | property, read/write | `property OaepLabel: string read GetOaepLabel write SetOaepLabel;` | | `OaepMgfHash` | property, read/write | `property OaepMgfHash: string read GetOaepMgfHash write SetOaepMgfHash;` | | `PkcsPadding` | property, read/write | `property PkcsPadding: Boolean read GetPkcsPadding write SetPkcsPadding;` | | `PssSaltLen` | property, read/write | `property PssSaltLen: Integer read GetPssSaltLen write SetPssSaltLen;` | | `UncommonOptions` | property, read/write | `property UncommonOptions: string read GetUncommonOptions write SetUncommonOptions;` | | `DecryptBd` | method | `// bd is a TBinData object. function DecryptBd(bd: TChilkatBase;     usePrivateKey: Boolean): Boolean;` | | `DecryptStringENC` | method | `function DecryptStringENC(const str: string;     usePrivateKey: Boolean): string;` | | `EncryptBd` | method | `// bd is a TBinData object. function EncryptBd(bd: TChilkatBase;     usePrivateKey: Boolean): Boolean;` | | `EncryptStringENC` | method | `function EncryptStringENC(const str: string;     bUsePrivateKey: Boolean): string;` | | `GenKey` | method | `// privKey is a TPrivateKey object. function GenKey(numBits: Integer;     privKey: TChilkatBase): Boolean;` | | `SetX509Cert` | method | `// cert is a TCert object. function SetX509Cert(cert: TChilkatBase;     usePrivateKey: Boolean): Boolean;` | | `SignBd` | method | `// bdData is a TBinData object. // bdSig is a TBinData object. function SignBd(bdData: TChilkatBase;     const hashAlgorithm: string;     bdSig: TChilkatBase): Boolean;` | | `SignHashENC` | method | `function SignHashENC(const encodedHash: string;     const hashAlg: string): string;` | | `SignRawBd` | method | `// bd is a TBinData object. function SignRawBd(bd: TChilkatBase): Boolean;` | | `SignStringENC` | method | `function SignStringENC(const strToBeHashed: string;     const hashAlgorithm: string): string;` | | `SnkToXml` | method | `function SnkToXml(const filename: string): string;` | | `UsePrivateKey` | method | `// privKey is a TPrivateKey object. function UsePrivateKey(privKey: TChilkatBase): Boolean;` | | `UsePublicKey` | method | `// pubKey is a TPublicKey object. function UsePublicKey(pubKey: TChilkatBase): Boolean;` | | `VerifyBd` | method | `// bdData is a TBinData object. // bdSig is a TBinData object. function VerifyBd(bdData: TChilkatBase;     const hashAlgorithm: string;     bdSig: TChilkatBase): Boolean;` | | `VerifyHashENC` | method | `function VerifyHashENC(const encodedHash: string;     const hashAlg: string;     const encodedSig: string): Boolean;` | | `VerifyRawBd` | method | `// bd is a TBinData object. function VerifyRawBd(bd: TChilkatBase): Boolean;` | | `VerifyStringENC` | method | `function VerifyStringENC(const originalString: string;     const hashAlgorithm: string;     const encodedSig: string): Boolean;` | ## Properties ### Rsa.Charset `Chilkat 11.7.0 · pascal · Rsa · Charset · property · read/write` ```pascal property Charset: string read GetCharset write SetCharset; ``` **Full documentation for this property (same in every language):** [How Charset Affects RSA](https://www.chilkatsoft.com/ai-docs/v/11.7.0/articles/how_charset_affects_rsa.md) · [ANSI Charset Explained](https://www.chilkatsoft.com/ai-docs/v/11.7.0/articles/ansi_charset_explained.md) This property specifies the character encoding used to represent text as bytes for encryption, decryption, signing, and signature validation. By default, it uses the computer's `ANSI` charset, such as Windows-1252 for locales like the United States, United Kingdom, Western Europe, Australia, and New Zealand. Most applications are advised to set this property to `UTF-8`. Chilkat plans to change its default to UTF-8 in a future major version to align with current standards. The current default of ANSI stems from a time when UTF-8 was not widely adopted. ### Rsa.EncodingMode `Chilkat 11.7.0 · pascal · Rsa · EncodingMode · property · read/write` ```pascal property EncodingMode: string read GetEncodingMode write SetEncodingMode; ``` This property defines the encoding for methods ending in `ENC`, such as EncryptStringENC. Valid modes include `base64`, `hex`, `hex_lower`, and more. The encoding mode applies to signatures, encrypted data, and hashes used in or returned by a method. ### Rsa.LittleEndian `Chilkat 11.7.0 · pascal · Rsa · LittleEndian · property · read/write` ```pascal property LittleEndian: Boolean read GetLittleEndian write SetLittleEndian; ``` When creating RSA signatures, this property determines the endianness: set it to `True` for little-endian signatures and `False` for big-endian signatures. See also: - [RSA Signatures and Endianness](https://cknotes.com/rsa-signatures-and-endianness/) ### Rsa.NoUnpad `Chilkat 11.7.0 · pascal · Rsa · NoUnpad · property · read/write` ```pascal property NoUnpad: Boolean read GetNoUnpad write SetNoUnpad; ``` If `True`, skips unpadding when decrypting. The default is `False`. This property value is typically left unchanged. ### Rsa.NumBits `Chilkat 11.7.0 · pascal · Rsa · NumBits · property · read-only` ```pascal property NumBits: Integer read GetNumBits; ``` The bit length, such as 2048, of the imported or generated RSA key. ### Rsa.OaepHash `Chilkat 11.7.0 · pascal · Rsa · OaepHash · property · read/write · since 9.5.0.48` ```pascal property OaepHash: string read GetOaepHash write SetOaepHash; ``` Selects the hash algorithm for use within OAEP padding for encryption. The valid choices are `sha256`, `sha384`, `sha512`, or `sha1`. The default is SHA1. You'll likely want to change this to to SHA256. The next major version of Chilkat (11.0.0) will change the default to SHA256. See also: - [More Information about RSA OAEP Padding for Encryption](https://cknotes.com/more-information-about-rsa-oaep-padding-for-encryption/) ### Rsa.OaepLabel `Chilkat 11.7.0 · pascal · Rsa · OaepLabel · property · read/write · since 9.5.0.95` ```pascal property OaepLabel: string read GetOaepLabel write SetOaepLabel; ``` The optional RSA encryption OAEP label is a hex representation of the label bytes used for encrypting with OAEP padding. Typically, this is left empty (0 bytes) unless there's a specific requirement to set it. See also: - [More Information about RSA OAEP Padding for Encryption](https://cknotes.com/more-information-about-rsa-oaep-padding-for-encryption/) ### Rsa.OaepMgfHash `Chilkat 11.7.0 · pascal · Rsa · OaepMgfHash · property · read/write · since 9.5.0.71` ```pascal property OaepMgfHash: string read GetOaepMgfHash write SetOaepMgfHash; ``` Selects the MGF (mask generation) hash algorithm for use within OAEP padding for encryption. The valid choices are `sha256`, `sha384`, `sha512`, or `sha1`. Note: This property should typically be set to the same value as the OaepHash property. Many software implementations are not able to handle cases where the MGF hash is different than the OAEP hash. The default is SHA1. You'll likely want to change this to to SHA256. The next major version of Chilkat (11.0.0) will change the default to SHA256. See also: - [More Information about RSA OAEP Padding for Encryption](https://cknotes.com/more-information-about-rsa-oaep-padding-for-encryption/) ### Rsa.PkcsPadding `Chilkat 11.7.0 · pascal · Rsa · PkcsPadding · property · read/write · since 11.0.0` ```pascal property PkcsPadding: Boolean read GetPkcsPadding write SetPkcsPadding; ``` This property controls padding for both signing and encryption. The default value is true, which is to use PKCS#1 v1.5 padding. If set to false, then PSS padding is used for signatures and OAEP padding is used for encryption. This property replaces the deprecated `OaepPadding` property. Until the OaepPadding property is removed, setting this property will automatically set OaepPadding to the opposite, and vice-versa. This is to maintain backward compatibility until applications can switch to using this new property. ### Rsa.PssSaltLen `Chilkat 11.7.0 · pascal · Rsa · PssSaltLen · property · read/write · since 9.5.0.80` ```pascal property PssSaltLen: Integer read GetPssSaltLen write SetPssSaltLen; ``` When using RSASSA-PSS padding for signatures, you can choose the PSS salt length. By default, the salt length is set to -1, which uses the length of the hash function. For instance, with the SHA256 hash function, the salt length will be 32 bytes. You can specify a different salt length, like 20 bytes, if needed, but it's generally recommended to keep the default setting. ### Rsa.UncommonOptions `Chilkat 11.7.0 · pascal · Rsa · UncommonOptions · property · read/write · since 10.1.0` ```pascal property UncommonOptions: string read GetUncommonOptions write SetUncommonOptions; ``` This is a catch-all property to be used for uncommon needs. This property defaults to the empty string and should typically remain empty. ## Methods ### Rsa.DecryptBd `Chilkat 11.7.0 · pascal · Rsa · DecryptBd · method · since 9.5.0.76` ```pascal // bd is a TBinData object. function DecryptBd(bd: TChilkatBase;     usePrivateKey: Boolean): Boolean; ``` RSA decrypts the contents of `bd`. `usePrivateKey` should be set to `True` if the private key is to be used for decrypting. Otherwise it should be set to `False` if (in rare cases) the public key is to be used for decrypting. **Important:** If trying to match OpenSSL results, set the LittleEndian property = `False`. Returns True for success, False for failure. See also: - [RSA Encryption Maximum Number of Bytes](https://cknotes.com/rsa-encryption-maximum-number-of-bytes/) ### Rsa.DecryptStringENC `Chilkat 11.7.0 · pascal · Rsa · DecryptStringENC · method` ```pascal function DecryptStringENC(const str: string;     usePrivateKey: Boolean): string; ``` Decrypts `str` with the RSA algorithm. `str` is the encoded form of the encrypted binary data. The EncodingMode property defines `str`'s encoding. The Charset property specifies the byte representation for interpreting the decrypted text. Set `usePrivateKey` to `True` to use the private key for decryption; otherwise, set `usePrivateKey` to `False` to use the public key (used rarely). Returns the decrypted string. **Important:** If trying to match OpenSSL results, set the LittleEndian property = `False`. Returns True for success, False for failure. ### Rsa.EncryptBd `Chilkat 11.7.0 · pascal · Rsa · EncryptBd · method · since 9.5.0.76` ```pascal // bd is a TBinData object. function EncryptBd(bd: TChilkatBase;     usePrivateKey: Boolean): Boolean; ``` RSA encrypts the contents of `bd`. Set `usePrivateKey` to `False` to use the public key for encrypting; otherwise, set it to `True` to use the private key (in rare cases). **Important:** If trying to match OpenSSL results, set the LittleEndian property = `False`. **Note:** The public key's role is to make encryption accessible to anyone while ensuring that only the private key holder can decrypt the messages. The public key is designed to be widely distributed so anyone can use it to encrypt messages intended for the owner of the private key. Returns True for success, False for failure. See also: - [RSA Encryption Maximum Number of Bytes](https://cknotes.com/rsa-encryption-maximum-number-of-bytes/) ### Rsa.EncryptStringENC `Chilkat 11.7.0 · pascal · Rsa · EncryptStringENC · method` ```pascal function EncryptStringENC(const str: string;     bUsePrivateKey: Boolean): string; ``` Encrypts `str` with the RSA algorithm. The Charset property specifies the byte representation of the string that is encrypted. Set `bUsePrivateKey` to `False` to use the public key for encrypting; otherwise, set it to `True` to use the private key (in rare cases). The encrypted data is returned in the format specified by the EncodingMode property. **Important:** If trying to match OpenSSL results, set the LittleEndian property = `False`. **Note:** The public key's role is to make encryption accessible to anyone while ensuring that only the private key holder can decrypt the messages. The public key is designed to be widely distributed so anyone can use it to encrypt messages intended for the owner of the private key. Returns True for success, False for failure. ### Rsa.GenKey `Chilkat 11.7.0 · pascal · Rsa · GenKey · method · since 11.0.0` ```pascal // privKey is a TPrivateKey object. function GenKey(numBits: Integer;     privKey: TChilkatBase): Boolean; ``` Generates a new RSA key and stores it in `privKey`. `numBits` specifies the key length, which can range from 512 to 8192 bits. Common key lengths are 1024, 2048, or 4096 bits. Note: Generating an 8192-bit key may take a significant amount of time. The method does not support event callbacks or progress monitoring and will block the thread until completion. Returns True for success, False for failure. ### Rsa.SetX509Cert `Chilkat 11.7.0 · pascal · Rsa · SetX509Cert · method · since 9.5.0.73` ```pascal // cert is a TCert object. function SetX509Cert(cert: TChilkatBase;     usePrivateKey: Boolean): Boolean; ``` Provides the private or public key indirectly through a certificate. This method is used when the private key is inaccessible, such as when stored on a smart card, USB token, in the Windows registry (marked as non-exportable), or in the Apple Keychain. Returns True for success, False for failure. ### Rsa.SignBd `Chilkat 11.7.0 · pascal · Rsa · SignBd · method · since 9.5.0.77` ```pascal // bdData is a TBinData object. // bdSig is a TBinData object. function SignBd(bdData: TChilkatBase;     const hashAlgorithm: string;     bdSig: TChilkatBase): Boolean; ``` Generates an RSA digital signature by first hashing the contents of `bdData` with the hash algorithm specified by `hashAlgorithm`, which can be `sha256`, `sha384`, `sha512`, or `sha1`. The resulting signature is written to `bdSig`. Note: It is important to be aware of endianness. Make sure the LittleEndian property is set according to your specific needs. Returns True for success, False for failure. ### Rsa.SignHashENC `Chilkat 11.7.0 · pascal · Rsa · SignHashENC · method` ```pascal function SignHashENC(const encodedHash: string;     const hashAlg: string): string; ``` This function creates an RSA digital signature for the hash provided in `encodedHash`, which should be encoded according to the EncodingMode setting (e.g., base64 if EncodingMode = `base64`). `hashAlg` specifies the hash algorithm and can be `sha256`, `sha384`, `sha512`, or `sha1`. The function returns the signature encoded as specified by EncodingMode. Returns True for success, False for failure. ### Rsa.SignRawBd `Chilkat 11.7.0 · pascal · Rsa · SignRawBd · method · since 11.0.0` ```pascal // bd is a TBinData object. function SignRawBd(bd: TChilkatBase): Boolean; ``` This is legacy low-level raw RSA that duplicates the (now deprecated) `OpenSSL` `rsautl` utility. It directly signs raw data rather than signing a hash of the data. PKCS#1 v1.5 padding is always used. The data to be signed is passed in `bd`, and on return the content of `bd` is replaced with the RSA signed data. Note: It is possible to validate and recover the original data by calling `VerifyRawBd`. Returns True for success, False for failure. ### Rsa.SignStringENC `Chilkat 11.7.0 · pascal · Rsa · SignStringENC · method` ```pascal function SignStringENC(const strToBeHashed: string;     const hashAlgorithm: string): string; ``` Generates an RSA digital signature by first hashing `strToBeHashed` with the hash algorithm specified by `hashAlgorithm`, which can be `sha256`, `sha384`, `sha512`, or `sha1`. Returns the signature encoded based on the EncodingMode property. **Note:** It is important to be aware of endianness. Make sure the LittleEndian property is set according to your specific needs. **Note:** It is recommended to set the Charset property equal to `utf-8` before signing strings. Returns True for success, False for failure. ### Rsa.SnkToXml `Chilkat 11.7.0 · pascal · Rsa · SnkToXml · method` ```pascal function SnkToXml(const filename: string): string; ``` Imports a .snk file to an XML document that can be imported via the ImportPrivateKey method. Returns True for success, False for failure. ### Rsa.UsePrivateKey `Chilkat 11.7.0 · pascal · Rsa · UsePrivateKey · method · since 11.0.0` ```pascal // privKey is a TPrivateKey object. function UsePrivateKey(privKey: TChilkatBase): Boolean; ``` Imports a private key from `privKey` to use for signing or decrypting. Returns True for success, False for failure. ### Rsa.UsePublicKey `Chilkat 11.7.0 · pascal · Rsa · UsePublicKey · method · since 11.0.0` ```pascal // pubKey is a TPublicKey object. function UsePublicKey(pubKey: TChilkatBase): Boolean; ``` Imports a public key from `pubKey` to use for encrypting or signature verification. Returns True for success, False for failure. ### Rsa.VerifyBd `Chilkat 11.7.0 · pascal · Rsa · VerifyBd · method · since 9.5.0.77` ```pascal // bdData is a TBinData object. // bdSig is a TBinData object. function VerifyBd(bdData: TChilkatBase;     const hashAlgorithm: string;     bdSig: TChilkatBase): Boolean; ``` Verifies the RSA signature passed in `bdSig` against the original data passed in `bdData`. The original data passed in `bdData` is hashed using the hash algorithm passed in `hashAlgorithm` (such as `sha256`, `sha384`, `sha512`, or `sha1`). Returns `True` if the signature is validated, and `False` if not. Note: Knowing the exact hash algorithm used to create the signature is not required. If the signature is not validated using the hash algorithm specified in `hashAlgorithm`, Chilkat will automatically try validating using the other supported algorithms and return success if any validate. Returns True for success, False for failure. ### Rsa.VerifyHashENC `Chilkat 11.7.0 · pascal · Rsa · VerifyHashENC · method` ```pascal function VerifyHashENC(const encodedHash: string;     const hashAlg: string;     const encodedSig: string): Boolean; ``` Validates an RSA signature provided in `encodedSig` against the hash of the original data in `encodedHash`. Returns `True` if validation is successful, otherwise returns `False`. `hashAlg` specifies the hash algorithm used for `encodedHash`, such as `sha256`, `sha384`, `sha512`, or `sha1`. Ensure the hash's size (e.g., 32 bytes for sha256, 48 bytes for sha384, 64 bytes for sha512, 20 bytes for sha1) matches that of `encodedHash`. Both `encodedHash` and `encodedSig` should be encoded according to the EncodingMode property (e.g., base64 if EncodingMode = `base64`) Returns True for success, False for failure. ### Rsa.VerifyRawBd `Chilkat 11.7.0 · pascal · Rsa · VerifyRawBd · method · since 11.0.0` ```pascal // bd is a TBinData object. function VerifyRawBd(bd: TChilkatBase): Boolean; ``` This is legacy low-level raw RSA that duplicates the (now deprecated) `OpenSSL` `rsautl` utility. It validates signed raw data and recovers the original data. The RSA signature to be verified is passed in `bd`, and on return the content of `bd` is replaced with the original data. Returns True for success, False for failure. ### Rsa.VerifyStringENC `Chilkat 11.7.0 · pascal · Rsa · VerifyStringENC · method` ```pascal function VerifyStringENC(const originalString: string;     const hashAlgorithm: string;     const encodedSig: string): Boolean; ``` Verifies the encoded RSA signature passed in `encodedSig` against the original data passed in `originalString`. The original data passed in `originalString` is hashed using the hash algorithm passed in `hashAlgorithm` (such as `sha256`, `sha384`, `sha512`, or `sha1`). Returns `True` if the signature is validated, and `False` if not. The signature passed in `encodedSig` should be encoded according to the EncodingMode property (e.g., base64 if EncodingMode = `base64`) Note: Knowing the exact hash algorithm used to create the signature is not required. If the signature is not validated using the hash algorithm specified in `hashAlgorithm`, Chilkat will automatically try validating using the other supported algorithms and return success if any validate. Returns True for success, False for failure. ## Related classes [`BinData`](https://www.chilkatsoft.com/ai-docs/v/11.7.0/pascal/classes/BinData.md), [`Cert`](https://www.chilkatsoft.com/ai-docs/v/11.7.0/pascal/classes/Cert.md), [`PrivateKey`](https://www.chilkatsoft.com/ai-docs/v/11.7.0/pascal/classes/PrivateKey.md), [`PublicKey`](https://www.chilkatsoft.com/ai-docs/v/11.7.0/pascal/classes/PublicKey.md)