Documentation

Fields

• _utcTime_year :: !Word16

  Year

• _utcTime_month :: !Word8

  Month (range 1 .. 12)

• _utcTime_day :: !Word8

  days in the month (range 1-31)

• _utcTime_hours :: !Word8

  hours of day (range 0-23)

• _utcTime_minutes :: !Word8

  minutes of hour (range 0-59)

• _utcTime_seconds :: !Word8

  seconds of minute (range 0-60) rounded down

• _utcTime_ns :: !Word32

  nanoseconds of second (range 0-999999999)

Fields

• _eCDSASignature_len :: !Word8

  Number of bytes to use of the signature field. The DER encoded signature has a maximum size of 72 bytes but can vary between 70 and 72 bytes in length.

• _eCDSASignature_data :: ![Word8]

  DER encoded ECDSA signature for the messages using SHA-256 as the digest algorithm.

Fields

• _msgEcdsaCertificate_n_msg :: !Word8

  Total number messages that make up the certificate. The first nibble (mask 0xF0 or left shifted by 4 bits) is the size of the sequence (n), second nibble (mask 0x0F) is the zero-indexed counter (ith packet of n).

• _msgEcdsaCertificate_certificate_id :: ![Word8]

  The last 4 bytes of the certificate's SHA-1 fingerprint

• _msgEcdsaCertificate_flags :: !Word8
   
• _msgEcdsaCertificate_certificate_bytes :: ![Word8]

  DER encoded x.509 ECDSA certificate bytes

Fields

• _msgCertificateChain_root_certificate :: ![Word8]

  SHA-1 fingerprint of the root certificate

• _msgCertificateChain_intermediate_certificate :: ![Word8]

  SHA-1 fingerprint of the intermediate certificate

• _msgCertificateChain_corrections_certificate :: ![Word8]

  SHA-1 fingerprint of the corrections certificate

• _msgCertificateChain_expiration :: !UtcTime

  The time after which the signature given is no longer valid. Implementors should consult a time source (such as GNSS) to check if the current time is later than the expiration time, if the condition is true, signatures in the stream should not be considered valid.

• _msgCertificateChain_signature :: !ECDSASignature

  Signature (created by the root certificate) over the concatenation of the SBP payload bytes preceding this field. That is, the concatenation of root_certificate, intermediate_certificate, corrections_certificate and expiration. This certificate chain (allow list) can also be validated by fetching it from `http(s):/certs.swiftnav.comchain`.

Fields

• _msgCertificateChainDep_root_certificate :: ![Word8]

  SHA-1 fingerprint of the root certificate

• _msgCertificateChainDep_intermediate_certificate :: ![Word8]

  SHA-1 fingerprint of the intermediate certificate

• _msgCertificateChainDep_corrections_certificate :: ![Word8]

  SHA-1 fingerprint of the corrections certificate

• _msgCertificateChainDep_expiration :: !UtcTime

  The certificate chain comprised of three fingerprints: root certificate, intermediate certificate and corrections certificate.

• _msgCertificateChainDep_signature :: ![Word8]

  An ECDSA signature (created by the root certificate) over the concatenation of the SBP payload bytes preceding this field. That is, the concatenation of root_certificate, intermediate_certificate, corrections_certificate and expiration. This certificate chain (allow list) can also be validated by fetching it from `http(s):/certs.swiftnav.comchain`.

Fields

• _msgEcdsaSignature_flags :: !Word8

  Describes the format of the `signed_messages` field below.

• _msgEcdsaSignature_stream_counter :: !Word8

  Signature message counter. Zero indexed and incremented with each signature message. The counter will not increment if this message was in response to an on demand request. The counter will roll over after 256 messages. Upon connection, the value of the counter may not initially be zero.

• _msgEcdsaSignature_on_demand_counter :: !Word8

  On demand message counter. Zero indexed and incremented with each signature message sent in response to an on demand message. The counter will roll over after 256 messages. Upon connection, the value of the counter may not initially be zero.

• _msgEcdsaSignature_certificate_id :: ![Word8]

  The last 4 bytes of the certificate's SHA-1 fingerprint

• _msgEcdsaSignature_signature :: !ECDSASignature

  Signature over the frames of this message group.

• _msgEcdsaSignature_signed_messages :: ![Word8]

  CRCs of the messages covered by this signature. For Skylark, which delivers SBP messages wrapped in Swift's proprietary RTCM message, these are the 24-bit CRCs from the RTCM message framing. For SBP only streams, this will be 16-bit CRCs from the SBP framing. See the flags field to determine the type of CRCs covered.

Fields

• _msgEcdsaSignatureDepB_flags :: !Word8

  Describes the format of the `signed_messages` field below.

• _msgEcdsaSignatureDepB_stream_counter :: !Word8

  Signature message counter. Zero indexed and incremented with each signature message. The counter will not increment if this message was in response to an on demand request. The counter will roll over after 256 messages. Upon connection, the value of the counter may not initially be zero.

• _msgEcdsaSignatureDepB_on_demand_counter :: !Word8

  On demand message counter. Zero indexed and incremented with each signature message sent in response to an on demand message. The counter will roll over after 256 messages. Upon connection, the value of the counter may not initially be zero.

• _msgEcdsaSignatureDepB_certificate_id :: ![Word8]

  The last 4 bytes of the certificate's SHA-1 fingerprint

• _msgEcdsaSignatureDepB_n_signature_bytes :: !Word8

  Number of bytes to use of the signature field. The DER encoded signature has a maximum size of 72 bytes but can vary between 70 and 72 bytes in length.

• _msgEcdsaSignatureDepB_signature :: ![Word8]

  DER encoded ECDSA signature for the messages using SHA-256 as the digest algorithm.

• _msgEcdsaSignatureDepB_signed_messages :: ![Word8]

  CRCs of the messages covered by this signature. For Skylark, which delivers SBP messages wrapped in Swift's proprietary RTCM message, these are the 24-bit CRCs from the RTCM message framing. For SBP only streams, this will be 16-bit CRCs from the SBP framing. See the flags field to determine the type of CRCs covered.

Fields

• _msgEcdsaSignatureDepA_flags :: !Word8

  Describes the format of the `signed_messages` field below.

• _msgEcdsaSignatureDepA_stream_counter :: !Word8

  Signature message counter. Zero indexed and incremented with each signature message. The counter will not increment if this message was in response to an on demand request. The counter will roll over after 256 messages. Upon connection, the value of the counter may not initially be zero.

• _msgEcdsaSignatureDepA_on_demand_counter :: !Word8

  On demand message counter. Zero indexed and incremented with each signature message sent in response to an on demand message. The counter will roll over after 256 messages. Upon connection, the value of the counter may not initially be zero.

• _msgEcdsaSignatureDepA_certificate_id :: ![Word8]

  The last 4 bytes of the certificate's SHA-1 fingerprint

• _msgEcdsaSignatureDepA_signature :: ![Word8]

  ECDSA signature for the messages using SHA-256 as the digest algorithm.

• _msgEcdsaSignatureDepA_signed_messages :: ![Word8]

  CRCs of the messages covered by this signature. For Skylark, which delivers SBP messages wrapped in Swift's proprietary RTCM message, these are the 24-bit CRCs from the RTCM message framing. For SBP only streams, this will be 16-bit CRCs from the SBP framing. See the flags field to determine the type of CRCs covered.

Fields

• _msgEd25519CertificateDep_n_msg :: !Word8

  Total number messages that make up the certificate. First nibble is the size of the sequence (n), second nibble is the zero-indexed counter (ith packet of n)

• _msgEd25519CertificateDep_fingerprint :: ![Word8]

  SHA-1 fingerprint of the associated certificate.

• _msgEd25519CertificateDep_certificate_bytes :: ![Word8]

  ED25519 certificate bytes.

Fields

• _msgEd25519SignatureDepA_signature :: ![Word8]

  ED25519 signature for messages.

• _msgEd25519SignatureDepA_fingerprint :: ![Word8]

  SHA-1 fingerprint of the associated certificate.

• _msgEd25519SignatureDepA_signed_messages :: ![Word32]

  CRCs of signed messages.

Fields

• _msgEd25519SignatureDepB_stream_counter :: !Word8

  Signature message counter. Zero indexed and incremented with each signature message. The counter will not increment if this message was in response to an on demand request. The counter will roll over after 256 messages. Upon connection, the value of the counter may not initially be zero.

• _msgEd25519SignatureDepB_on_demand_counter :: !Word8

  On demand message counter. Zero indexed and incremented with each signature message sent in response to an on demand message. The counter will roll over after 256 messages. Upon connection, the value of the counter may not initially be zero.

• _msgEd25519SignatureDepB_signature :: ![Word8]

  ED25519 signature for messages.

• _msgEd25519SignatureDepB_fingerprint :: ![Word8]

  SHA-1 fingerprint of the associated certificate.

• _msgEd25519SignatureDepB_signed_messages :: ![Word32]

  CRCs of signed messages.