Constant Field Values

Contents

• org.bouncycastle.*

org.bouncycastle.*

org.bouncycastle.asn1.ASN1Encoding

Modifier and Type	Constant Field	Value
public static final java.lang.String	BER	"BER"
public static final java.lang.String	DER	"DER"
public static final java.lang.String	DL	"DL"

org.bouncycastle.asn1.BERTags

Modifier and Type	Constant Field	Value
public static final int	APPLICATION	64
public static final int	BIT_STRING	3
public static final int	BMP_STRING	30
public static final int	BOOLEAN	1
public static final int	CONSTRUCTED	32
public static final int	ENUMERATED	10
public static final int	EXTERNAL	8
public static final int	GENERAL_STRING	27
public static final int	GENERALIZED_TIME	24
public static final int	GRAPHIC_STRING	25
public static final int	IA5_STRING	22
public static final int	INTEGER	2
public static final int	NULL	5
public static final int	NUMERIC_STRING	18
public static final int	OBJECT_IDENTIFIER	6
public static final int	OCTET_STRING	4
public static final int	PRINTABLE_STRING	19
public static final int	SEQUENCE	16
public static final int	SEQUENCE_OF	16
public static final int	SET	17
public static final int	SET_OF	17
public static final int	T61_STRING	20
public static final int	TAGGED	128
public static final int	UNIVERSAL_STRING	28
public static final int	UTC_TIME	23
public static final int	UTF8_STRING	12
public static final int	VIDEOTEX_STRING	21
public static final int	VISIBLE_STRING	26

org.bouncycastle.asn1.bc.ObjectStoreIntegrityCheck

Modifier and Type	Constant Field	Value
public static final int	PBKD_MAC_CHECK	0

org.bouncycastle.asn1.cmp.PKIBody

Modifier and Type	Constant Field	Value
public static final int	TYPE_CA_KEY_UPDATE_ANN	15
public static final int	TYPE_CERT_ANN	16
public static final int	TYPE_CERT_CONFIRM	24
public static final int	TYPE_CERT_REP	3
public static final int	TYPE_CERT_REQ	2
public static final int	TYPE_CONFIRM	19
public static final int	TYPE_CRL_ANN	18
public static final int	TYPE_CROSS_CERT_REP	14
public static final int	TYPE_CROSS_CERT_REQ	13
public static final int	TYPE_ERROR	23
public static final int	TYPE_GEN_MSG	21
public static final int	TYPE_GEN_REP	22
public static final int	TYPE_INIT_REP	1
public static final int	TYPE_INIT_REQ	0
public static final int	TYPE_KEY_RECOVERY_REP	10
public static final int	TYPE_KEY_RECOVERY_REQ	9
public static final int	TYPE_KEY_UPDATE_REP	8
public static final int	TYPE_KEY_UPDATE_REQ	7
public static final int	TYPE_NESTED	20
public static final int	TYPE_P10_CERT_REQ	4
public static final int	TYPE_POLL_REP	26
public static final int	TYPE_POLL_REQ	25
public static final int	TYPE_POPO_CHALL	5
public static final int	TYPE_POPO_REP	6
public static final int	TYPE_REVOCATION_ANN	17
public static final int	TYPE_REVOCATION_REP	12
public static final int	TYPE_REVOCATION_REQ	11

org.bouncycastle.asn1.cmp.PKIFailureInfo

Modifier and Type	Constant Field	Value
public static final int	addInfoNotAvailable	4194304
public static final int	badAlg	128
public static final int	badCertId	8
public static final int	badCertTemplate	1048576
public static final int	badDataFormat	4
public static final int	badMessageCheck	64
public static final int	badPOP	16384
public static final int	badRecipientNonce	1024
public static final int	badRequest	32
public static final int	badSenderNonce	2097152
public static final int	badTime	16
public static final int	certConfirmed	4096
public static final int	certRevoked	8192
public static final int	duplicateCertReq	536870912
public static final int	incorrectData	1
public static final int	missingTimeStamp	32768
public static final int	notAuthorized	65536
public static final int	signerNotTrusted	524288
public static final int	systemFailure	1073741824
public static final int	systemUnavail	-2147483648
public static final int	timeNotAvailable	512
public static final int	transactionIdInUse	262144
public static final int	unacceptedExtension	8388608
public static final int	unacceptedPolicy	256
public static final int	unsupportedVersion	131072
public static final int	wrongAuthority	2
public static final int	wrongIntegrity	2048

org.bouncycastle.asn1.cmp.PKIHeader

Modifier and Type	Constant Field	Value
public static final int	CMP_1999	1
public static final int	CMP_2000	2

org.bouncycastle.asn1.cmp.PKIStatus

Modifier and Type	Constant Field	Value
public static final int	GRANTED	0
public static final int	GRANTED_WITH_MODS	1
public static final int	KEY_UPDATE_WARNING	6
public static final int	REJECTION	2
public static final int	REVOCATION_NOTIFICATION	5
public static final int	REVOCATION_WARNING	4
public static final int	WAITING	3

org.bouncycastle.asn1.cms.CMSAlgorithmProtection

Modifier and Type	Constant Field	Value
public static final int	MAC	2
public static final int	SIGNATURE	1

org.bouncycastle.asn1.crmf.PKIArchiveOptions

Modifier and Type	Constant Field	Value
public static final int	archiveRemGenPrivKey	2
public static final int	encryptedPrivKey	0
public static final int	keyGenParameters	1

org.bouncycastle.asn1.crmf.POPOPrivKey

Modifier and Type	Constant Field	Value
public static final int	agreeMAC	3
public static final int	dhMAC	2
public static final int	encryptedKey	4
public static final int	subsequentMessage	1
public static final int	thisMessage	0

org.bouncycastle.asn1.crmf.ProofOfPossession

Modifier and Type	Constant Field	Value
public static final int	TYPE_KEY_AGREEMENT	3
public static final int	TYPE_KEY_ENCIPHERMENT	2
public static final int	TYPE_RA_VERIFIED	0
public static final int	TYPE_SIGNING_KEY	1

org.bouncycastle.asn1.dvcs.CertEtcToken

Modifier and Type	Constant Field	Value
public static final int	TAG_ASSERTION	3
public static final int	TAG_CAPABILITIES	8
public static final int	TAG_CERTIFICATE	0
public static final int	TAG_CRL	4
public static final int	TAG_ESSCERTID	1
public static final int	TAG_OCSPCERTID	6
public static final int	TAG_OCSPCERTSTATUS	5
public static final int	TAG_OCSPRESPONSE	7
public static final int	TAG_PKISTATUS	2

org.bouncycastle.asn1.eac.CertificateBody

Modifier and Type	Constant Field	Value
public static final int	profileType	127
public static final int	requestType	13

org.bouncycastle.asn1.eac.CertificateHolderAuthorization

Modifier and Type	Constant Field	Value
public static final int	CVCA	192
public static final int	DV_DOMESTIC	128
public static final int	DV_FOREIGN	64
public static final int	IS	0
public static final int	RADG3	1
public static final int	RADG4	2

org.bouncycastle.asn1.eac.EACTags

Modifier and Type	Constant Field	Value
public static final int	ADDRESS	66
public static final int	ANSWER_TO_RESET	81
public static final int	APPLICATION_EFFECTIVE_DATE	37
public static final int	APPLICATION_EXPIRATION_DATE	36
public static final int	APPLICATION_IDENTIFIER	15
public static final int	APPLICATION_IMAGE	68
public static final int	APPLICATION_IMAGE_TEMPLATE	13
public static final int	APPLICATION_LABEL	16
public static final int	APPLICATION_RELATED_DATA	14
public static final int	APPLICATION_TEMPLATE	1
public static final int	AUTHENTIFICATION_DATA	7
public static final int	BIOMETRIC_DATA_TEMPLATE	46
public static final int	BIOMETRIC_INFORMATION_GROUP_TEMPLATE	1
public static final int	BIOMETRIC_INFORMATION_TEMPLATE	0
public static final int	CARD_CAPABILITIES	7
public static final int	CARD_DATA	6
public static final int	CARD_EFFECTIVE_DATE	38
public static final int	CARD_EXPIRATION_DATA	25
public static final int	CARD_ISSUER_DATA	5
public static final int	CARD_SEQUENCE_NUMBER	52
public static final int	CARD_SERVICE_DATA	3
public static final int	CARDHOLDER_BIOMETRIC_DATA	46
public static final int	CARDHOLDER_CERTIFICATE	33
public static final int	CARDHOLDER_HANDWRITTEN_SIGNATURE	67
public static final int	CARDHOLDER_IMAGE_TEMPLATE	12
public static final int	CARDHOLDER_NAME	32
public static final int	CARDHOLDER_NATIONALITY	44
public static final int	CARDHOLDER_PORTRAIT_IMAGE	64
public static final int	CARDHOLDER_PRIVATE_KEY	72
public static final int	CARDHOLDER_PRIVATE_KEY_TEMPLATE	72
public static final int	CARDHOLDER_PUBLIC_KEY	73
public static final int	CARDHOLDER_PUBLIC_KEY_TEMPLATE	73
public static final int	CARDHOLDER_RELATIVE_DATA	5
public static final int	CARDHOLER_REQUIREMENTS_EXCLUDED_FEATURES	35
public static final int	CARDHOLER_REQUIREMENTS_INCLUDED_FEATURES	34
public static final int	CERTIFICATE_BODY	78
public static final int	CERTIFICATE_CONTENT	78
public static final int	CERTIFICATE_CONTENT_TEMPLATE	78
public static final int	CERTIFICATE_HOLDER_AUTHORIZATION	76
public static final int	CERTIFICATE_HOLDER_AUTHORIZATION_TEMPLATE	76
public static final int	CERTIFICATION_AUTHORITY_PUBLIC_KEY	74
public static final int	COEXISTANT_TAG_ALLOCATION_AUTHORITY	25
public static final int	COMMAND_TO_PERFORM	18
public static final int	COMPATIBLE_TAG_ALLOCATION_AUTHORITY	24
public static final int	COUNTRY_CODE	40
public static final int	COUNTRY_CODE_NATIONAL_DATA	1
public static final int	CURRENCY_CODE	42
public static final int	CURRENCY_EXPONENT	54
public static final int	CV_CERTIFICATE	33
public static final int	DATE_OF_BIRTH	43
public static final int	DEPRECATED	75
public static final int	DIGITAL_SIGNATURE	61
public static final int	DIGITAL_SIGNATURE_BLOCK	61
public static final int	DISCRETIONARY_DATA	19
public static final int	DISCRETIONARY_DATA_OBJECTS	19
public static final int	DISPLAY_CONTROL	32
public static final int	DISPLAY_IMAGE	69
public static final int	DYNAMIC_AUTHENTIFICATION_TEMPLATE	28
public static final int	DYNAMIC_EXTERNAL_AUTHENTIFICATION	59
public static final int	DYNAMIC_INTERNAL_AUTHENTIFICATION	58
public static final int	DYNAMIC_MUTUAL_AUTHENTIFICATION	60
public static final int	ELEMENT_LIST	65
public static final int	EXTENDED_HEADER_LIST	13
public static final int	FCI_TEMPLATE	15
public static final int	FCP_TEMPLATE	2
public static final int	FILE_REFERENCE	17
public static final int	FMD_TEMPLATE	4
public static final int	HEADER_LIST	29
public static final int	HISTORICAL_BYTES	82
public static final int	INITIAL_ACCESS_DATA	4
public static final int	INTEGRATED_CIRCUIT_MANUFACTURER_ID	77
public static final int	INTERCHANGE_CONTROL	39
public static final int	INTERCHANGE_PROFILE	41
public static final int	ISSUER_IDENTIFICATION_NUMBER	2
public static final int	LANGUAGE_PREFERENCES	45
public static final int	LOGIN_DATA	30
public static final int	LOGIN_TEMPLATE	10
public static final int	MESSAGE_REFERENCE	71
public static final int	NAME	27
public static final int	NON_INTERINDUSTRY_DATA_OBJECT_NESTING_TEMPLATE	30
public static final int	OFFSET_DATA_OBJECT	20
public static final int	PIN_USAGE_POLICY	47
public static final int	PRE_ISSUING_DATA	6
public static final int	PRIMARY_ACCOUNT_NUMBER	26
public static final int	QUALIFIED_NAME	11
public static final int	SECURE_MESSAGING_TEMPLATE	29
public static final int	SECURITY_ENVIRONMENT_TEMPLATE	27
public static final int	SECURITY_SUPPORT_TEMPLATE	26
public static final int	SERVICE_CODE	48
public static final int	SEX	53
public static final int	SIGNATURE	55
public static final int	SPECIAL_USER_REQUIREMENTS	8
public static final int	STATIC_INTERNAL_AUTHENTIFICATION_FIRST_DATA	56
public static final int	STATIC_INTERNAL_AUTHENTIFICATION_ONE_STEP	55
public static final int	STATIC_INTERNAL_AUTHENTIFICATION_SECOND_DATA	57
public static final int	STATUS_INFORMATION	8
public static final int	TAG_LIST	28
public static final int	TIMER	70
public static final int	TRACK1_APPLICATION	22
public static final int	TRACK1_CARD	33
public static final int	TRACK2_APPLICATION	23
public static final int	TRACK2_CARD	34
public static final int	TRACK3_APPLICATION	24
public static final int	TRACK3_CARD	35
public static final int	TRANSACTION_COUNTER	50
public static final int	TRANSACTION_DATE	51
public static final int	UNIFORM_RESOURCE_LOCATOR	80
public static final int	WRAPPER	3

org.bouncycastle.asn1.icao.LDSSecurityObject

Modifier and Type	Constant Field	Value
public static final int	ub_DataGroups	16

org.bouncycastle.asn1.isismtt.ocsp.RequestedCertificate

Modifier and Type	Constant Field	Value
public static final int	attributeCertificate	1
public static final int	certificate	-1
public static final int	publicKeyCertificate	0

org.bouncycastle.asn1.isismtt.x509.DeclarationOfMajority

Modifier and Type	Constant Field	Value
public static final int	dateOfBirth	2
public static final int	fullAgeAtCountry	1
public static final int	notYoungerThan	0

org.bouncycastle.asn1.misc.NetscapeCertType

Modifier and Type	Constant Field	Value
public static final int	objectSigning	16
public static final int	objectSigningCA	1
public static final int	reserved	8
public static final int	smime	32
public static final int	smimeCA	2
public static final int	sslCA	4
public static final int	sslClient	128
public static final int	sslServer	64

org.bouncycastle.asn1.ocsp.OCSPResponseStatus

Modifier and Type	Constant Field	Value
public static final int	INTERNAL_ERROR	2
public static final int	MALFORMED_REQUEST	1
public static final int	SIG_REQUIRED	5
public static final int	SUCCESSFUL	0
public static final int	TRY_LATER	3
public static final int	UNAUTHORIZED	6

org.bouncycastle.asn1.pkcs.PKCSObjectIdentifiers

Modifier and Type	Constant Field	Value
public static final java.lang.String	id_spq	"1.2.840.113549.1.9.16.5"

org.bouncycastle.asn1.tsp.Accuracy

Modifier and Type	Constant Field	Value
protected static final int	MAX_MICROS	999
protected static final int	MAX_MILLIS	999
protected static final int	MIN_MICROS	1
protected static final int	MIN_MILLIS	1

org.bouncycastle.asn1.x509.CRLReason

Modifier and Type	Constant Field	Value
public static final int	aACompromise	10
public static final int	affiliationChanged	3
public static final int	cACompromise	2
public static final int	certificateHold	6
public static final int	cessationOfOperation	5
public static final int	keyCompromise	1
public static final int	privilegeWithdrawn	9
public static final int	removeFromCRL	8
public static final int	superseded	4
public static final int	unspecified	0

org.bouncycastle.asn1.x509.DisplayText

Modifier and Type	Constant Field	Value
public static final int	CONTENT_TYPE_BMPSTRING	1
public static final int	CONTENT_TYPE_IA5STRING	0
public static final int	CONTENT_TYPE_UTF8STRING	2
public static final int	CONTENT_TYPE_VISIBLESTRING	3
public static final int	DISPLAY_TEXT_MAXIMUM_SIZE	200

org.bouncycastle.asn1.x509.DistributionPointName

Modifier and Type	Constant Field	Value
public static final int	FULL_NAME	0
public static final int	NAME_RELATIVE_TO_CRL_ISSUER	1

org.bouncycastle.asn1.x509.GeneralName

Modifier and Type	Constant Field	Value
public static final int	directoryName	4
public static final int	dNSName	2
public static final int	ediPartyName	5
public static final int	iPAddress	7
public static final int	otherName	0
public static final int	registeredID	8
public static final int	rfc822Name	1
public static final int	uniformResourceIdentifier	6
public static final int	x400Address	3

org.bouncycastle.asn1.x509.Holder

Modifier and Type	Constant Field	Value
public static final int	V1_CERTIFICATE_HOLDER	0
public static final int	V2_CERTIFICATE_HOLDER	1

org.bouncycastle.asn1.x509.IetfAttrSyntax

Modifier and Type	Constant Field	Value
public static final int	VALUE_OCTETS	1
public static final int	VALUE_OID	2
public static final int	VALUE_UTF8	3

org.bouncycastle.asn1.x509.KeyUsage

Modifier and Type	Constant Field	Value
public static final int	cRLSign	2
public static final int	dataEncipherment	16
public static final int	decipherOnly	32768
public static final int	digitalSignature	128
public static final int	encipherOnly	1
public static final int	keyAgreement	8
public static final int	keyCertSign	4
public static final int	keyEncipherment	32
public static final int	nonRepudiation	64

org.bouncycastle.asn1.x509.ObjectDigestInfo

Modifier and Type	Constant Field	Value
public static final int	otherObjectDigest	2
public static final int	publicKey	0
public static final int	publicKeyCert	1

org.bouncycastle.asn1.x509.ReasonFlags

Modifier and Type	Constant Field	Value
public static final int	aACompromise	32768
public static final int	affiliationChanged	16
public static final int	cACompromise	32
public static final int	certificateHold	2
public static final int	cessationOfOperation	4
public static final int	keyCompromise	64
public static final int	privilegeWithdrawn	1
public static final int	superseded	8
public static final int	unused	128

org.bouncycastle.asn1.x509.Target

Modifier and Type	Constant Field	Value
public static final int	targetGroup	1
public static final int	targetName	0

org.bouncycastle.asn1.x509.qualified.TypeOfBiometricData

Modifier and Type	Constant Field	Value
public static final int	HANDWRITTEN_SIGNATURE	1
public static final int	PICTURE	0

org.bouncycastle.crypto.CryptoServicesPermission

Modifier and Type	Constant Field	Value
public static final java.lang.String	DEFAULT_RANDOM	"defaultRandomConfig"
public static final java.lang.String	FIPS_EXPORT_KEYS	"exportKeys"
public static final java.lang.String	FIPS_MODE_CHANGE_TO_APPROVED_MODE_ENABLED	"changeToApprovedModeEnabled"
public static final java.lang.String	FIPS_MODE_EXPORT_PRIVATE_KEY	"exportPrivateKey"
public static final java.lang.String	FIPS_MODE_EXPORT_SECRET_KEY	"exportSecretKey"
public static final java.lang.String	FIPS_MODE_TLS_NULL_DIGEST_ENABLED	"tlsNullDigestEnabled"
public static final java.lang.String	FIPS_MODE_TLS_PKCS15_KEY_WRAP_ENABLED	"tlsPKCS15KeyWrapEnabled"
public static final java.lang.String	FIPS_MODE_UNAPPROVED_MODE_ENABLED	"unapprovedModeEnabled"
public static final java.lang.String	FIPS_TLS_ALGORITHMS_ENABLED	"tlsAlgorithmsEnabled"
public static final java.lang.String	GLOBAL_CONFIG	"globalConfig"
public static final java.lang.String	THREAD_LOCAL_CONFIG	"threadLocalConfig"

org.bouncycastle.crypto.CryptoServicesRegistrar

Modifier and Type	Constant Field	Value
public static final java.lang.String	MODULE_HMAC_KEY	"Legion of the Bouncy Castle Inc."

org.bouncycastle.crypto.fips.FipsKDF.TLSStage

Modifier and Type	Constant Field	Value
public static final java.lang.String	EXTENDED_MASTER_SECRET	"extended master secret"
public static final java.lang.String	KEY_EXPANSION	"key expansion"
public static final java.lang.String	MASTER_SECRET	"master secret"

org.bouncycastle.crypto.fips.FipsStatus

Modifier and Type	Constant Field	Value
public static final java.lang.String	READY	"READY"

org.bouncycastle.crypto.general.EdEC

Modifier and Type	Constant Field	Value
public static final int	Ed25519_PRIVATE_KEY_SIZE	32
public static final int	Ed25519_PUBLIC_KEY_SIZE	32
public static final int	Ed448_PRIVATE_KEY_SIZE	57
public static final int	Ed448_PUBLIC_KEY_SIZE	57
public static final int	X25519_PRIVATE_KEY_SIZE	32
public static final int	X25519_PUBLIC_KEY_SIZE	32
public static final int	X448_PRIVATE_KEY_SIZE	56
public static final int	X448_PUBLIC_KEY_SIZE	56

org.bouncycastle.jcajce.PKIXExtendedParameters

Modifier and Type	Constant Field	Value
public static final int	CHAIN_VALIDITY_MODEL	1
public static final int	PKIX_VALIDITY_MODEL	0

org.bouncycastle.jcajce.provider.BouncyCastleFipsProvider

Modifier and Type	Constant Field	Value
public static final java.lang.String	PROVIDER_NAME	"BCFIPS"

org.bouncycastle.jcajce.spec.DSADomainParametersGenerationParameterSpec

Modifier and Type	Constant Field	Value
public static final int	DIGITAL_SIGNATURE_USAGE	1
public static final int	KEY_ESTABLISHMENT_USAGE	2

org.bouncycastle.jcajce.spec.EdDSAParameterSpec

Modifier and Type	Constant Field	Value
public static final java.lang.String	Ed25519	"Ed25519"
public static final java.lang.String	Ed448	"Ed448"

org.bouncycastle.jcajce.spec.XDHParameterSpec

Modifier and Type	Constant Field	Value
public static final java.lang.String	X25519	"X25519"
public static final java.lang.String	X448	"X448"

org.bouncycastle.math.ec.ECCurve

Modifier and Type	Constant Field	Value
public static final int	COORD_AFFINE	0
public static final int	COORD_HOMOGENEOUS	1
public static final int	COORD_JACOBIAN	2
public static final int	COORD_JACOBIAN_CHUDNOVSKY	3
public static final int	COORD_JACOBIAN_MODIFIED	4
public static final int	COORD_LAMBDA_AFFINE	5
public static final int	COORD_LAMBDA_PROJECTIVE	6
public static final int	COORD_SKEWED	7

org.bouncycastle.math.ec.ECFieldElement.F2m

Modifier and Type	Constant Field	Value
public static final int	GNB	1
public static final int	PPB	3
public static final int	TPB	2

org.bouncycastle.math.ec.FixedPointUtil

Modifier and Type	Constant Field	Value
public static final java.lang.String	PRECOMP_NAME	"bc_fixed_point"

org.bouncycastle.math.ec.WNafUtil

Modifier and Type	Constant Field	Value
public static final java.lang.String	PRECOMP_NAME	"bc_wnaf"

org.bouncycastle.math.ec.rfc7748.X25519

Modifier and Type	Constant Field	Value
public static final int	POINT_SIZE	32
public static final int	SCALAR_SIZE	32

org.bouncycastle.math.ec.rfc7748.X25519Field

Modifier and Type	Constant Field	Value
public static final int	SIZE	10

org.bouncycastle.math.ec.rfc7748.X448

Modifier and Type	Constant Field	Value
public static final int	POINT_SIZE	56
public static final int	SCALAR_SIZE	56

org.bouncycastle.math.ec.rfc7748.X448Field

Modifier and Type	Constant Field	Value
public static final int	SIZE	16

org.bouncycastle.math.ec.rfc8032.Ed25519

Modifier and Type	Constant Field	Value
public static final int	PREHASH_SIZE	64
public static final int	PUBLIC_KEY_SIZE	32
public static final int	SECRET_KEY_SIZE	32
public static final int	SIGNATURE_SIZE	64

org.bouncycastle.math.ec.rfc8032.Ed25519.Algorithm

Modifier and Type	Constant Field	Value
public static final int	Ed25519	0
public static final int	Ed25519ctx	1
public static final int	Ed25519ph	2

org.bouncycastle.math.ec.rfc8032.Ed448

Modifier and Type	Constant Field	Value
public static final int	PREHASH_SIZE	64
public static final int	PUBLIC_KEY_SIZE	57
public static final int	SECRET_KEY_SIZE	57
public static final int	SIGNATURE_SIZE	114

org.bouncycastle.math.ec.rfc8032.Ed448.Algorithm

Modifier and Type	Constant Field	Value
public static final int	Ed448	0
public static final int	Ed448ph	1