Documentation

A key-signing key (KSK) is a complex type that represents a public/private key pair. The private key is used to generate a digital signature for the zone signing key (ZSK). The public key is stored in the DNS and is used to authenticate the ZSK. A KSK is always associated with a hosted zone; it cannot exist by itself.

See: newKeySigningKey smart constructor.

Create a value of KeySigningKey with all optional fields omitted.

Use generic-lens or optics to modify other optional fields.

The following record fields are available, with the corresponding lenses provided for backwards compatibility:

$sel:status:KeySigningKey', keySigningKey_status - A string that represents the current key-signing key (KSK) status.

Status can have one of the following values:

ACTIVE

The KSK is being used for signing.

INACTIVE

The KSK is not being used for signing.

DELETING

The KSK is in the process of being deleted.

ACTION_NEEDED

There is a problem with the KSK that requires you to take action to resolve. For example, the customer managed customer master key (CMK) might have been deleted, or the permissions for the customer managed CMK might have been changed.

INTERNAL_FAILURE

There was an error during a request. Before you can continue to work with DNSSEC signing, including actions that involve this KSK, you must correct the problem. For example, you may need to activate or deactivate the KSK.

$sel:signingAlgorithmMnemonic:KeySigningKey', keySigningKey_signingAlgorithmMnemonic - A string used to represent the signing algorithm. This value must follow the guidelines provided by RFC-8624 Section 3.1.

$sel:digestAlgorithmMnemonic:KeySigningKey', keySigningKey_digestAlgorithmMnemonic - A string used to represent the delegation signer digest algorithm. This value must follow the guidelines provided by RFC-8624 Section 3.3.

$sel:lastModifiedDate:KeySigningKey', keySigningKey_lastModifiedDate - The last time that the key-signing key (KSK) was changed.

$sel:keyTag:KeySigningKey', keySigningKey_keyTag - An integer used to identify the DNSSEC record for the domain name. The process used to calculate the value is described in RFC-4034 Appendix B.

$sel:dNSKEYRecord:KeySigningKey', keySigningKey_dNSKEYRecord - A string that represents a DNSKEY record.

$sel:publicKey:KeySigningKey', keySigningKey_publicKey - The public key, represented as a Base64 encoding, as required by RFC-4034 Page 5.

$sel:signingAlgorithmType:KeySigningKey', keySigningKey_signingAlgorithmType - An integer used to represent the signing algorithm. This value must follow the guidelines provided by RFC-8624 Section 3.1.

$sel:createdDate:KeySigningKey', keySigningKey_createdDate - The date when the key-signing key (KSK) was created.

$sel:flag:KeySigningKey', keySigningKey_flag - An integer that specifies how the key is used. For key-signing key (KSK), this value is always 257.

$sel:digestAlgorithmType:KeySigningKey', keySigningKey_digestAlgorithmType - An integer used to represent the delegation signer digest algorithm. This value must follow the guidelines provided by RFC-8624 Section 3.3.

$sel:statusMessage:KeySigningKey', keySigningKey_statusMessage - The status message provided for the following key-signing key (KSK) statuses: ACTION_NEEDED or INTERNAL_FAILURE. The status message includes information about what the problem might be and steps that you can take to correct the issue.

$sel:name:KeySigningKey', keySigningKey_name - A string used to identify a key-signing key (KSK). Name can include numbers, letters, and underscores (_). Name must be unique for each key-signing key in the same hosted zone.

$sel:dSRecord:KeySigningKey', keySigningKey_dSRecord - A string that represents a delegation signer (DS) record.

$sel:kmsArn:KeySigningKey', keySigningKey_kmsArn - The Amazon resource name (ARN) used to identify the customer managed customer master key (CMK) in Key Management Service (KMS). The KmsArn must be unique for each key-signing key (KSK) in a single hosted zone.

You must configure the CMK as follows:

Status

Enabled

Key spec

ECC_NIST_P256

Key usage

Sign and verify

Key policy

The key policy must give permission for the following actions:

• DescribeKey
• GetPublicKey
• Sign

The key policy must also include the Amazon Route 53 service in the principal for your account. Specify the following:

• "Service": "dnssec-route53.amazonaws.com"

For more information about working with the customer managed CMK in KMS, see Key Management Service concepts.

$sel:digestValue:KeySigningKey', keySigningKey_digestValue - A cryptographic digest of a DNSKEY resource record (RR). DNSKEY records are used to publish the public key that resolvers can use to verify DNSSEC signatures that are used to secure certain kinds of information provided by the DNS system.

A string that represents the current key-signing key (KSK) status.

Status can have one of the following values:

ACTIVE

The KSK is being used for signing.

INACTIVE

The KSK is not being used for signing.

DELETING

The KSK is in the process of being deleted.

ACTION_NEEDED

There is a problem with the KSK that requires you to take action to resolve. For example, the customer managed customer master key (CMK) might have been deleted, or the permissions for the customer managed CMK might have been changed.

INTERNAL_FAILURE

There was an error during a request. Before you can continue to work with DNSSEC signing, including actions that involve this KSK, you must correct the problem. For example, you may need to activate or deactivate the KSK.

A string used to represent the signing algorithm. This value must follow the guidelines provided by RFC-8624 Section 3.1.

A string used to represent the delegation signer digest algorithm. This value must follow the guidelines provided by RFC-8624 Section 3.3.

The last time that the key-signing key (KSK) was changed.

An integer used to identify the DNSSEC record for the domain name. The process used to calculate the value is described in RFC-4034 Appendix B.

A string that represents a DNSKEY record.

The public key, represented as a Base64 encoding, as required by RFC-4034 Page 5.

An integer used to represent the signing algorithm. This value must follow the guidelines provided by RFC-8624 Section 3.1.

The date when the key-signing key (KSK) was created.

An integer that specifies how the key is used. For key-signing key (KSK), this value is always 257.

An integer used to represent the delegation signer digest algorithm. This value must follow the guidelines provided by RFC-8624 Section 3.3.

The status message provided for the following key-signing key (KSK) statuses: ACTION_NEEDED or INTERNAL_FAILURE. The status message includes information about what the problem might be and steps that you can take to correct the issue.

A string used to identify a key-signing key (KSK). Name can include numbers, letters, and underscores (_). Name must be unique for each key-signing key in the same hosted zone.

A string that represents a delegation signer (DS) record.

The Amazon resource name (ARN) used to identify the customer managed customer master key (CMK) in Key Management Service (KMS). The KmsArn must be unique for each key-signing key (KSK) in a single hosted zone.

You must configure the CMK as follows:

Status

Enabled

Key spec

ECC_NIST_P256

Key usage

Sign and verify

Key policy

The key policy must give permission for the following actions:

• DescribeKey
• GetPublicKey
• Sign

The key policy must also include the Amazon Route 53 service in the principal for your account. Specify the following:

• "Service": "dnssec-route53.amazonaws.com"

For more information about working with the customer managed CMK in KMS, see Key Management Service concepts.

A cryptographic digest of a DNSKEY resource record (RR). DNSKEY records are used to publish the public key that resolvers can use to verify DNSSEC signatures that are used to secure certain kinds of information provided by the DNS system.