- revocation_key: try!(derive_public_revocation_key(&secp_ctx, &per_commitment_point, &b_revocation_base)),
- a_htlc_key: try!(derive_public_key(&secp_ctx, &per_commitment_point, &a_htlc_base)),
- b_htlc_key: try!(derive_public_key(&secp_ctx, &per_commitment_point, &b_htlc_base)),
- a_delayed_payment_key: try!(derive_public_key(&secp_ctx, &per_commitment_point, &a_delayed_payment_base)),
- b_payment_key: try!(derive_public_key(&secp_ctx, &per_commitment_point, &b_payment_base)),
+ revocation_key: derive_public_revocation_key(&secp_ctx, &per_commitment_point, &b_revocation_base)?,
+ a_htlc_key: derive_public_key(&secp_ctx, &per_commitment_point, &a_htlc_base)?,
+ b_htlc_key: derive_public_key(&secp_ctx, &per_commitment_point, &b_htlc_base)?,
+ a_delayed_payment_key: derive_public_key(&secp_ctx, &per_commitment_point, &a_delayed_payment_base)?,
+ b_payment_key: derive_public_key(&secp_ctx, &per_commitment_point, &b_payment_base)?,