[Home](./index.md) > [@digitalpersona/core](./core.md) ## core package ## Classes | Class | Description | | --- | --- | | [Answer](./core.answer.md) | An answer to a security question. | | [Base32](./core.base32.md) | Set of converters to Base32. | | [Base64](./core.base64.md) | Set of converters to Base64. | | [Base64Url](./core.base64url.md) | Set of converters to Base64Url. | | [BioSample](./core.biosample.md) | A biometric sample. | | [BioSampleFormat](./core.biosampleformat.md) | Biometric sample format info. | | [BioSampleHeader](./core.biosampleheader.md) | Contains meta-information about biometric sample data. | | [Credential](./core.credential.md) | Credential data. | | [FaceImage](./core.faceimage.md) | Face image data. | | [Finger](./core.finger.md) | Finger enrollment data. | | [JWT](./core.jwt.md) | Represents a JSON Web Token and gives access to the token's payload. Note that this class does not allow to validate the token signature in the browser, it must be done on a server side. | | [Question](./core.question.md) | Security question data. | | [Ticket](./core.ticket.md) | A structure wrapping a JSON Web Token to pass it to the DigitalPersona Web Components services. | | [Url](./core.url.md) | Provides a way to construct sanitized URLs from a base URL, a path and a query object | | [User](./core.user.md) | Represents a user's identity using a user's name name and a type of the name. This class is typially used to pass a user name during authentication. | | [Utf16](./core.utf16.md) | Set of converters to UTF16. | | [Utf8](./core.utf8.md) | Set of converters to UTF8. | ## Enumerations | Enumeration | Description | | --- | --- | | [BioFactor](./core.biofactor.md) | Biometric factors. | | [BioSampleEncryption](./core.biosampleencryption.md) | A biometric sample encryption type. | | [BioSampleFormatOwner](./core.biosampleformatowner.md) | Biometric owner ID registered with [IBIA](http://www.ibia.org/base/cbeff/_biometric_org.phpx). | | [BioSamplePurpose](./core.biosamplepurpose.md) | A purpose the biometric sample was intended for. | | [BioSampleType](./core.biosampletype.md) | A representation type of a biometric sample. | | [ClaimName](./core.claimname.md) | Enumerate publicly registered and private DigitalPersona claim names. | | [FaceImageType](./core.faceimagetype.md) | Format of a face image sample. | | [FingerPosition](./core.fingerposition.md) | Positions of fingers. | | [QuestionType](./core.questiontype.md) | Type of a security question. | | [UserNameType](./core.usernametype.md) | Enumerates supported username formats. | ## Interfaces | Interface | Description | | --- | --- | | [ClaimSet](./core.claimset.md) | Set of claims passed in a JSON Web Token. | | [CredentialUsed](./core.credentialused.md) | Claim information about a credential used. See [ClaimSet.crd](./core.claimset.crd.md). | | [QuestionWithAnswer](./core.questionwithanswer.md) | A structure associating a sequrity question with its corresponding answer. | ## Type Aliases | Type Alias | Description | | --- | --- | | [Answers](./core.answers.md) | A collection on answers to security questions. | | [Base32String](./core.base32string.md) | Branded alias type for Base32-encoded strings. | | [Base64String](./core.base64string.md) | Branded alias type for Base64-encoded strings. | | [Base64UrlString](./core.base64urlstring.md) | Branded alias type for Base64Url-encoded strings. | | [ClaimNames](./core.claimnames.md) | Alias type representing all claim names, as if type ClaimNames = "jti" | "iss" | "iat" | "aud" | ... | "wan" | "t24"; | | [CredentialId](./core.credentialid.md) | Branded alias type for credential identifier strings. | | [Fingers](./core.fingers.md) | Collection of finger enrollment data. | | [HexString](./core.hexstring.md) | Branded alias type for Hex-encoded strings. | | [JSONWebToken](./core.jsonwebtoken.md) | Branded alias type for a string representing a JSON Web Token. | | [QuestionNumber](./core.questionnumber.md) | | | [Questions](./core.questions.md) | A collection of security questions. | | [Utf16String](./core.utf16string.md) | Branded alias type for UTF16-encoded strings. | | [Utf8String](./core.utf8string.md) | Branded alias type for UTF8-encoded strings. |