Add artifacts storage

go.mod

@@ -3,10 +3,14 @@ module github.com/reilabs/trusted-setup
 go 1.24
 
 require (
+	github.com/aws/aws-sdk-go-v2 v1.38.2
+	github.com/aws/aws-sdk-go-v2/config v1.31.4
+	github.com/aws/aws-sdk-go-v2/feature/s3/manager v1.19.2
+	github.com/aws/aws-sdk-go-v2/service/s3 v1.87.2
 	github.com/consensys/gnark v0.13.0
 	github.com/consensys/gnark-crypto v0.18.0
 	github.com/drand/go-clients v0.2.3
-	github.com/golang/protobuf v1.5.4
+	github.com/rs/zerolog v1.34.0
 	github.com/stretchr/testify v1.10.0
 	github.com/urfave/cli/v3 v3.3.8
 	github.com/worldcoin/ptau-deserializer v0.2.0
@@ -18,6 +22,21 @@ replace github.com/worldcoin/ptau-deserializer => github.com/reilabs/ptau-deseri
 
 require (
 	github.com/BurntSushi/toml v1.5.0 // indirect
+	github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream v1.7.1 // indirect
+	github.com/aws/aws-sdk-go-v2/credentials v1.18.8 // indirect
+	github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.18.5 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/configsources v1.4.5 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.7.5 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/ini v1.8.3 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/v4a v1.4.5 // indirect
+	github.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.13.1 // indirect
+	github.com/aws/aws-sdk-go-v2/service/internal/checksum v1.8.5 // indirect
+	github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.13.5 // indirect
+	github.com/aws/aws-sdk-go-v2/service/internal/s3shared v1.19.5 // indirect
+	github.com/aws/aws-sdk-go-v2/service/sso v1.28.3 // indirect
+	github.com/aws/aws-sdk-go-v2/service/ssooidc v1.34.1 // indirect
+	github.com/aws/aws-sdk-go-v2/service/sts v1.38.1 // indirect
+	github.com/aws/smithy-go v1.23.0 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/bits-and-blooms/bitset v1.22.0 // indirect
 	github.com/blang/semver/v4 v4.0.0 // indirect
@@ -32,6 +51,7 @@ require (
 	github.com/hashicorp/go-multierror v1.1.1 // indirect
 	github.com/hashicorp/golang-lru v1.0.2 // indirect
 	github.com/ingonyama-zk/icicle-gnark/v3 v3.2.2 // indirect
+	github.com/johannesboyne/gofakes3 v0.0.0-20250825084532-6555d310c473 // indirect
 	github.com/kilic/bls12-381 v0.1.0 // indirect
 	github.com/mattn/go-colorable v0.1.14 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
@@ -43,17 +63,18 @@ require (
 	github.com/prometheus/common v0.65.0 // indirect
 	github.com/prometheus/procfs v0.17.0 // indirect
 	github.com/ronanh/intcomp v1.1.1 // indirect
-	github.com/rs/zerolog v1.34.0 // indirect
-	github.com/stretchr/objx v0.5.2 // indirect
+	github.com/ryszard/goskiplist v0.0.0-20150312221310-2dfbae5fcf46 // indirect
 	github.com/x448/float16 v0.8.4 // indirect
 	go.dedis.ch/fixbuf v1.0.3 // indirect
+	go.shabbyrobe.org/gocovmerge v0.0.0-20230507111327-fa4f82cfbf4d // indirect
 	go.uber.org/multierr v1.11.0 // indirect
 	go.uber.org/zap v1.27.0 // indirect
 	golang.org/x/crypto v0.39.0 // indirect
 	golang.org/x/net v0.41.0 // indirect
 	golang.org/x/sync v0.15.0 // indirect
 	golang.org/x/sys v0.33.0 // indirect
 	golang.org/x/text v0.26.0 // indirect
+	golang.org/x/tools v0.33.0 // indirect
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20250414145226-207652e42e2e // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

go.sum

@@ -2,6 +2,44 @@ github.com/BurntSushi/toml v1.5.0 h1:W5quZX/G/csjUnuI8SUYlsHs9M38FC7znL0lIO+DvMg
 github.com/BurntSushi/toml v1.5.0/go.mod h1:ukJfTF/6rtPPRCnwkur4qwRxa8vTRFBF0uk2lLoLwho=
 github.com/ardanlabs/darwin/v2 v2.0.0 h1:XCisQMgQ5EG+ZvSEcADEo+pyfIMKyWAGnn5o2TgriYE=
 github.com/ardanlabs/darwin/v2 v2.0.0/go.mod h1:MubZ2e9DAYGaym0mClSOi183NYahrrfKxvSy1HMhoes=
+github.com/aws/aws-sdk-go-v2 v1.38.2 h1:QUkLO1aTW0yqW95pVzZS0LGFanL71hJ0a49w4TJLMyM=
+github.com/aws/aws-sdk-go-v2 v1.38.2/go.mod h1:sDioUELIUO9Znk23YVmIk86/9DOpkbyyVb1i/gUNFXY=
+github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream v1.7.1 h1:i8p8P4diljCr60PpJp6qZXNlgX4m2yQFpYk+9ZT+J4E=
+github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream v1.7.1/go.mod h1:ddqbooRZYNoJ2dsTwOty16rM+/Aqmk/GOXrK8cg7V00=
+github.com/aws/aws-sdk-go-v2/config v1.31.4 h1:aY2IstXOfjdLtr1lDvxFBk5DpBnHgS5GS3jgR/0BmPw=
+github.com/aws/aws-sdk-go-v2/config v1.31.4/go.mod h1:1IAykiegrTp6n+CbZoCpW6kks1I74fEDgl2BPQSkLSU=
+github.com/aws/aws-sdk-go-v2/credentials v1.18.8 h1:0FfdP0I9gs/f1rwtEdkcEdsclTEkPB8o6zWUG2Z8+IM=
+github.com/aws/aws-sdk-go-v2/credentials v1.18.8/go.mod h1:9UReQ1UmGooX93JKzHyr7PRF3F+p3r+PmRwR7+qHJYA=
+github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.18.5 h1:ul7hICbZ5Z/Pp9VnLVGUVe7rqYLXCyIiPU7hQ0sRkow=
+github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.18.5/go.mod h1:5cIWJ0N6Gjj+72Q6l46DeaNtcxXHV42w/Uq3fIfeUl4=
+github.com/aws/aws-sdk-go-v2/feature/s3/manager v1.19.2 h1:eZAl6tdv3HrIHAxbpnDQByEOD84bmxyhLmgvUYJ8ggo=
+github.com/aws/aws-sdk-go-v2/feature/s3/manager v1.19.2/go.mod h1:vV+YS0SWfpwbIGOUWbB5NWklaYKscfYrQRb9ggHptxs=
+github.com/aws/aws-sdk-go-v2/internal/configsources v1.4.5 h1:d45S2DqHZOkHu0uLUW92VdBoT5v0hh3EyR+DzMEh3ag=
+github.com/aws/aws-sdk-go-v2/internal/configsources v1.4.5/go.mod h1:G6e/dR2c2huh6JmIo9SXysjuLuDDGWMeYGibfW2ZrXg=
+github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.7.5 h1:ENhnQOV3SxWHplOqNN1f+uuCNf9n4Y/PKpl6b1WRP0Q=
+github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.7.5/go.mod h1:csQLMI+odbC0/J+UecSTztG70Dc4aTCOu4GyPNDNpVo=
+github.com/aws/aws-sdk-go-v2/internal/ini v1.8.3 h1:bIqFDwgGXXN1Kpp99pDOdKMTTb5d2KyU5X/BZxjOkRo=
+github.com/aws/aws-sdk-go-v2/internal/ini v1.8.3/go.mod h1:H5O/EsxDWyU+LP/V8i5sm8cxoZgc2fdNR9bxlOFrQTo=
+github.com/aws/aws-sdk-go-v2/internal/v4a v1.4.5 h1:ovHE1XM53pMGOwINf8Mas4FMl5XRRMAihNokV1YViZ8=
+github.com/aws/aws-sdk-go-v2/internal/v4a v1.4.5/go.mod h1:Cmu/DOSYwcr0xYTFk7sA9NJ5HF3ND0EqNUBdoK16nPI=
+github.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.13.1 h1:oegbebPEMA/1Jny7kvwejowCaHz1FWZAQ94WXFNCyTM=
+github.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.13.1/go.mod h1:kemo5Myr9ac0U9JfSjMo9yHLtw+pECEHsFtJ9tqCEI8=
+github.com/aws/aws-sdk-go-v2/service/internal/checksum v1.8.5 h1:gC3YW8AojITDXfI5avcKZst5iOg6v5aQEU4HIcxwAss=
+github.com/aws/aws-sdk-go-v2/service/internal/checksum v1.8.5/go.mod h1:z5OdVolKifM0NpEel6wLkM/TQ0eodWB2dmDFoj3WCbw=
+github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.13.5 h1:Cx1M/UUgYu9UCQnIMKaOhkVaFvLy1HneD6T4sS/DlKg=
+github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.13.5/go.mod h1:fTRNLgrTvPpEzGqc9QkeO4hu/3ng+mdtUbL8shUwXz4=
+github.com/aws/aws-sdk-go-v2/service/internal/s3shared v1.19.5 h1:IM2yO5Dd9bzCmYEvLU6Di5kduRKh4O93TjrZ47hxLhQ=
+github.com/aws/aws-sdk-go-v2/service/internal/s3shared v1.19.5/go.mod h1:0nXagJIQFWms6GJ1jvPJLwr8r3hN6f+kTwt17Q2NrPQ=
+github.com/aws/aws-sdk-go-v2/service/s3 v1.87.2 h1:HNAbIp6VXmtKR+JuDmywGcRc3kYoIGT9y4a2Zg9bSTQ=
+github.com/aws/aws-sdk-go-v2/service/s3 v1.87.2/go.mod h1:6VSEglrPCTx7gi7Z7l/CtqSgbnFr1N6UJ6+Ik+vjuEo=
+github.com/aws/aws-sdk-go-v2/service/sso v1.28.3 h1:z6lajFT/qGlLRB/I8V5CCklqSuWZKUkdwRAn9leIkiQ=
+github.com/aws/aws-sdk-go-v2/service/sso v1.28.3/go.mod h1:BnyjuIX0l+KXJVl2o9Ki3Zf0M4pA2hQYopFCRUj9ADU=
+github.com/aws/aws-sdk-go-v2/service/ssooidc v1.34.1 h1:8yI3jK5JZ310S8RpgdZdzwvlvBu3QbG8DP7Be/xJ6yo=
+github.com/aws/aws-sdk-go-v2/service/ssooidc v1.34.1/go.mod h1:HPzXfFgrLd02lYpcFYdDz5xZs94LOb+lWlvbAGaeMsk=
+github.com/aws/aws-sdk-go-v2/service/sts v1.38.1 h1:3kWmIg5iiWPMBJyq/I55Fki5fyfoMtrn/SkUIpxPwHQ=
+github.com/aws/aws-sdk-go-v2/service/sts v1.38.1/go.mod h1:yi0b3Qez6YamRVJ+Rbi19IgvjfjPODgVRhkWA6RTMUM=
+github.com/aws/smithy-go v1.23.0 h1:8n6I3gXzWJB2DxBDnfxgBaSX6oe0d/t10qGz7OKqMCE=
+github.com/aws/smithy-go v1.23.0/go.mod h1:t1ufH5HMublsJYulve2RKmHDC15xu1f26kHCp/HgceI=
 github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
 github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
 github.com/bits-and-blooms/bitset v1.22.0 h1:Tquv9S8+SGaS3EhyA+up3FXzmkhxPGjQQCkcs2uw7w4=
@@ -65,6 +103,8 @@ github.com/ingonyama-zk/icicle-gnark/v3 v3.2.2 h1:B+aWVgAx+GlFLhtYjIaF0uGjU3rzpl
 github.com/ingonyama-zk/icicle-gnark/v3 v3.2.2/go.mod h1:CH/cwcr21pPWH+9GtK/PFaa4OGTv4CtfkCKro6GpbRE=
 github.com/jmoiron/sqlx v1.4.0 h1:1PLqN7S1UYp5t4SrVVnt4nUVNemrDAtxlulVe+Qgm3o=
 github.com/jmoiron/sqlx v1.4.0/go.mod h1:ZrZ7UsYB/weZdl2Bxg6jCRO9c3YHl8r3ahlKmRT4JLY=
+github.com/johannesboyne/gofakes3 v0.0.0-20250825084532-6555d310c473 h1:dFhdS4skQ9FYVrhMYmoTFAZpdrVDKUDL+ACqEBGLZns=
+github.com/johannesboyne/gofakes3 v0.0.0-20250825084532-6555d310c473/go.mod h1:zrz/yDxjXycSAS7BFibBFSxIB6DKybZh+x1Bb+hVi4U=
 github.com/jonboulle/clockwork v0.5.0 h1:Hyh9A8u51kptdkR+cqRpT1EebBwTn1oK9YfGYbdFz6I=
 github.com/jonboulle/clockwork v0.5.0/go.mod h1:3mZlmanh0g2NDKO5TWZVJAfofYk64M7XN3SzBPjZF60=
 github.com/kilic/bls12-381 v0.1.0 h1:encrdjqKMEvabVQ7qYOKu1OvhqpK4s47wDYtNiPtlp4=
@@ -113,8 +153,8 @@ github.com/ronanh/intcomp v1.1.1/go.mod h1:7FOLy3P3Zj3er/kVrU/pl+Ql7JFZj7bwliMGk
 github.com/rs/xid v1.6.0/go.mod h1:7XoLgs4eV+QndskICGsho+ADou8ySMSjJKDIan90Nz0=
 github.com/rs/zerolog v1.34.0 h1:k43nTLIwcTVQAncfCw4KZ2VY6ukYoZaBPNOE8txlOeY=
 github.com/rs/zerolog v1.34.0/go.mod h1:bJsvje4Z08ROH4Nhs5iH600c3IkWhwp44iRc54W6wYQ=
-github.com/stretchr/objx v0.5.2 h1:xuMeJ0Sdp5ZMRXx/aWO6RZxdr3beISkG5/G/aIRr3pY=
-github.com/stretchr/objx v0.5.2/go.mod h1:FRsXN1f5AsAjCGJKqEizvkpNtU+EGNCLh3NxZ/8L+MA=
+github.com/ryszard/goskiplist v0.0.0-20150312221310-2dfbae5fcf46 h1:GHRpF1pTW19a8tTFrMLUcfWwyC0pnifVo2ClaLq+hP8=
+github.com/ryszard/goskiplist v0.0.0-20150312221310-2dfbae5fcf46/go.mod h1:uAQ5PCi+MFsC7HjREoAz1BU+Mq60+05gifQSsHSDG/8=
 github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOfJA=
 github.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
 github.com/urfave/cli/v3 v3.3.8 h1:BzolUExliMdet9NlJ/u4m5vHSotJ3PzEqSAZ1oPMa/E=
@@ -149,6 +189,8 @@ go.opentelemetry.io/otel/trace v1.35.0 h1:dPpEfJu1sDIqruz7BHFG3c7528f6ddfSWfFDVt
 go.opentelemetry.io/otel/trace v1.35.0/go.mod h1:WUk7DtFp1Aw2MkvqGdwiXYDZZNvA/1J8o6xRXLrIkyc=
 go.opentelemetry.io/proto/otlp v1.5.0 h1:xJvq7gMzB31/d406fB8U5CBdyQGw4P399D1aQWU/3i4=
 go.opentelemetry.io/proto/otlp v1.5.0/go.mod h1:keN8WnHxOy8PG0rQZjJJ5A2ebUoafqWp0eVQ4yIXvJ4=
+go.shabbyrobe.org/gocovmerge v0.0.0-20230507111327-fa4f82cfbf4d h1:Ns9kd1Rwzw7t0BR8XMphenji4SmIoNZPn8zhYmaVKP8=
+go.shabbyrobe.org/gocovmerge v0.0.0-20230507111327-fa4f82cfbf4d/go.mod h1:92Uoe3l++MlthCm+koNi0tcUCX3anayogF0Pa/sp24k=
 go.uber.org/goleak v1.3.0 h1:2K3zAYmnTNqV73imy9J1T3WC+gmCePx2hEGkimedGto=
 go.uber.org/goleak v1.3.0/go.mod h1:CoHD4mav9JJNrW/WLlf7HGZPjdw8EucARQHekz1X6bE=
 go.uber.org/multierr v1.11.0 h1:blXXJkSxSSfBVBlC76pxqeO+LN3aDfLQo+309xJstO0=
@@ -171,6 +213,8 @@ golang.org/x/sys v0.33.0 h1:q3i8TbbEz+JRD9ywIRlyRAQbM0qF7hu24q3teo2hbuw=
 golang.org/x/sys v0.33.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
 golang.org/x/text v0.26.0 h1:P42AVeLghgTYr4+xUnTRKDMqpar+PtX7KWuNQL21L8M=
 golang.org/x/text v0.26.0/go.mod h1:QK15LZJUUQVJxhz7wXgxSy/CJaTFjd0G+YLonydOVQA=
+golang.org/x/tools v0.33.0 h1:4qz2S3zmRxbGIhDIAgjxvFutSvH5EfnsYrRBj0UI0bc=
+golang.org/x/tools v0.33.0/go.mod h1:CIJMaWEY88juyUfo7UbgPqbC8rU2OqfAV1h2Qp0oMYI=
 google.golang.org/genproto/googleapis/api v0.0.0-20250414145226-207652e42e2e h1:UdXH7Kzbj+Vzastr5nVfccbmFsmYNygVLSPk1pEfDoY=
 google.golang.org/genproto/googleapis/api v0.0.0-20250414145226-207652e42e2e/go.mod h1:085qFyf2+XaZlRdCgKNCIZ3afY2p4HHZdoIRpId8F4A=
 google.golang.org/genproto/googleapis/rpc v0.0.0-20250414145226-207652e42e2e h1:ztQaXfzEXTmCBvbtWYRhJxW+0iJcz2qXfd38/e9l7bA=

online/actions/server.go

@@ -2,23 +2,24 @@ package actions
 
 import (
 	"context"
-	"fmt"
+	"io"
 	"log"
 	"os"
 	"os/signal"
 	"syscall"
 
+	"github.com/rs/zerolog"
 	"github.com/urfave/cli/v3"
 
 	"github.com/reilabs/trusted-setup/offline/phase1"
-	offline_phase2 "github.com/reilabs/trusted-setup/offline/phase2"
 	"github.com/reilabs/trusted-setup/offline/r1cs"
 	server_config "github.com/reilabs/trusted-setup/online/config"
 	"github.com/reilabs/trusted-setup/online/contribution"
 	"github.com/reilabs/trusted-setup/online/server"
 	"github.com/reilabs/trusted-setup/online/server/ceremony_service"
 	"github.com/reilabs/trusted-setup/online/server/contributors_manager"
 	"github.com/reilabs/trusted-setup/online/server/coordinator"
+	"github.com/reilabs/trusted-setup/online/storage"
 	"github.com/reilabs/trusted-setup/utils/randomness"
 )
 
@@ -41,20 +42,68 @@ func Server(_ context.Context, cmd *cli.Command) error {
 		return err
 	}
 
+	logFile, err := os.CreateTemp("", "")
+	if err != nil {
+		return err
+	}
+	defer func(logFile *os.File) {
+		err = logFile.Close()
+		if err != nil {
+			log.Printf("Error closing log file writer: %v", err)
+		}
+	}(logFile)
+	consoleWriter := zerolog.ConsoleWriter{Out: os.Stdout, TimeFormat: "2006/01/02 15:04:05"}
+	ceremonyLogger := zerolog.New(io.MultiWriter(consoleWriter, logFile)).With().Timestamp().Logger()
+
 	beaconProvider, err := randomness.New()
 	if err != nil {
 		return err
 	}
+	beacon := beaconProvider.GetBeacon()
+	ceremonyLogger.Info().Hex("beacon", beacon).Send()
+
+	var store storage.Storage
+	if !config.UseS3 {
+		log.Print("Ceremony artifacts will be stored in tmpfs")
+		store = storage.NewTmpfs(config.CeremonyName)
+	} else {
+		log.Println("Ceremony artifacts will be stored in AWS S3")
+		var s3Opts []storage.S3Option
+		if config.S3Bucket != "" {
+			log.Printf("\tbucket: %s", config.S3Bucket)
+			s3Opts = append(s3Opts, storage.WithBucket(config.S3Bucket))
+		}
+		if config.S3Region != "" {
+			log.Printf("\tregion: %s", config.S3Region)
+			s3Opts = append(s3Opts, storage.WithRegion(config.S3Region))
+		}
+		if config.S3Profile != "" {
+			log.Printf("\tprofile: %s", config.S3Profile)
+			s3Opts = append(s3Opts, storage.WithProfile(config.S3Profile))
+		}
+		if config.S3CredentialsFile != "" {
+			log.Printf("\tcredentials file: %s", config.S3CredentialsFile)
+			s3Opts = append(s3Opts, storage.WithCredentialsFile(config.S3CredentialsFile))
+		}
+		store, err = storage.NewS3(s3Opts...)
+		if err != nil {
+			return err
+		}
+	}
 
 	log.Print("Initializing Phase 2")
-	last := contribution.New(p1, ccs, beaconProvider.GetBeacon())
+	last, err := contribution.New(p1, ccs, store, beacon)
+	if err != nil {
+		return err
+	}
 
 	service := ceremony_service.New(
 		config.CeremonyName,
 		coordinator.New(
 			last,
 			contributors_manager.New(),
 		),
+		&ceremonyLogger,
 	)
 
 	s := server.New(service)
@@ -66,34 +115,33 @@ func Server(_ context.Context, cmd *cli.Command) error {
 
 	sigs := make(chan os.Signal, 1)
 	signal.Notify(sigs, syscall.SIGINT, syscall.SIGTERM)
-	fmt.Println("Press Ctrl+C to end Ceremony and generate Keys")
+	log.Println("Press Ctrl+C to end Ceremony and generate Keys")
 	<-sigs
 	s.Stop()
 
-	// TODO: this is temporary, keys will go to S3
-	pkTemp, err := getTempFilePath("pk")
-	if err != nil {
-		return err
+	if last.GetCount() > 0 {
+		log.Printf("Generating keys out of %d contributions...\n", last.GetCount())
+		_, _, err = last.ExtractKeys()
+	} else {
+		log.Printf("No contributions received")
 	}
-	vkTemp, err := getTempFilePath("vk")
+
+	_, err = logFile.Seek(0, 0)
 	if err != nil {
-		return err
+		log.Printf("Rewinding log file failed")
+	}
+	if _, err = store.Save("log", logFile); err != nil {
+		log.Printf("Storing ceremony log failed")
 	}
-	fmt.Println("Generating keys...")
-	pk, vk := last.ExtractKeys()
-	return offline_phase2.PkVkToFile(pk, pkTemp, vk, vkTemp)
-}
 
-func getTempFilePath(pattern string) (string, error) {
-	tempFile, err := os.CreateTemp("", pattern)
+	log.Println("Artifacts generated in the ceremony:")
+	files, err := store.List()
 	if err != nil {
-		return "", err
+		return err
 	}
-	// Close immediately because we're not writing to these files, we just need paths
-	err = tempFile.Close()
-	if err != nil {
-		log.Printf("error closing %s", tempFile.Name())
+	for _, file := range files {
+		log.Println("\t" + file)
 	}
 
-	return tempFile.Name(), nil
+	return err
 }

online/config/config.go

@@ -9,11 +9,16 @@ import (
 )
 
 type Config struct {
-	CeremonyName string `json:"ceremonyName"`
-	Host         string `json:"host"`
-	Port         int    `json:"port"`
-	R1cs         string `json:"r1cs"`
-	Phase1       string `json:"phase1"`
+	CeremonyName      string `json:"ceremonyName"`
+	Host              string `json:"host"`
+	Port              int    `json:"port"`
+	R1cs              string `json:"r1cs"`
+	Phase1            string `json:"phase1"`
+	UseS3             bool   `json:"useS3"`
+	S3Bucket          string `json:"s3Bucket"`
+	S3Region          string `json:"s3Region"`
+	S3Profile         string `json:"s3Profile"`
+	S3CredentialsFile string `json:"s3CredentialsFile"`
 }
 
 func (c *Config) Validate() error {